Environmental Science Toughest Questions! Trivia Quiz
-
Inland wetlands are valuable for providing
-
Wildlife habitat.
-
Improved water quality.
-
Regulated stream flow.
-
All of these answers
-
None of these answers
-
Are you prepared for this environmental science most challenging questions quiz? You should be mindful of inland wetlands being valuable, the tragedy of the commons, what percentage of urban transportation is by car, which type of forest soil works in which areas of land, what would Good Wilderness Management do, by what is hydrologic cycle driven. If you want to See moreunderstand more about environmental science, this is the quiz for you.
Quiz Preview
- 2.
Which of the following statements best illustrates the tragedy of the commons?
-
A factory pollutes a river as much as the law allows.
-
Some levels of pollution are life threatening.
-
Some activities harm the environment, but others do not.
-
Irrigated cropland can be ruined by salinization.
-
Cropland can decrease biodiversity.
Correct Answer
A. A factory pollutes a river as much as the law allows.Explanation
This statement best illustrates the tragedy of the commons because it shows how a factory is exploiting a shared resource, the river, to its maximum extent without considering the negative consequences on the environment or other users of the resource. The factory is polluting the river up to the legal limit, indicating a lack of concern for the long-term sustainability of the resource and the well-being of other stakeholders. This scenario highlights the tragedy of the commons, where individual self-interest leads to the degradation of a commonly shared resource.Rate this question:
-
- 3.
In the United States, ______ of all urban transportation is by car.
-
68%
-
78%
-
88%
-
98%
-
48%
Correct Answer
A. 98%Explanation
In the United States, 98% of all urban transportation is by car. This means that the vast majority of people in urban areas in the US rely on cars as their primary mode of transportation. This high percentage could be attributed to various factors such as the extensive road infrastructure, limited public transportation options in some areas, and the convenience and flexibility that cars provide for commuting and running errands.Rate this question:
-
- 4.
The goal of even-aged management of a forest is
-
Maintenance of maximum biological diversity.
-
Production of high-quality timber.
-
A long-term ecologically oriented approach.
-
To grow and harvest monoculture forests.
-
Multiple use of forest for timber, watershed protection and recreation.
Correct Answer
A. To grow and harvest monoculture forests.Explanation
The goal of even-aged management of a forest is to grow and harvest monoculture forests. This means that the management approach focuses on cultivating and harvesting trees of the same age and species. This allows for efficient timber production, as trees can be harvested at the same time, and it simplifies management practices. However, it may not promote maximum biological diversity as monoculture forests lack the variety of species found in natural forests. It is not a long-term ecologically oriented approach as it may have negative impacts on ecosystem health. Multiple use of the forest for timber, watershed protection, and recreation may not be the primary goal in even-aged management.Rate this question:
-
- 5.
Leaf mold, a humus-mineral mixture, and silty loam are indicative of
-
Coniferous forest soil.
-
Deciduous forest soil.
-
Tropical forest soil.
-
Grassland soil.
-
Desert soil.
Correct Answer
A. Deciduous forest soil.Explanation
Leaf mold, a humus-mineral mixture, and silty loam are characteristics commonly found in deciduous forest soil. Leaf mold refers to decomposed leaves that provide organic matter, while a humus-mineral mixture indicates a balance of organic and inorganic materials. Silty loam refers to the soil texture, which is a combination of silt and sand particles. These characteristics are typical of deciduous forests, where the leaf litter from deciduous trees contributes to the formation of leaf mold and the overall composition of the soil.Rate this question:
-
- 6.
Since 1920, urban areas in the United States have seen improvements in
-
Housing conditions.
-
Medical care.
-
Air and water quality.
-
Sanitation.
-
All of these answers.
Correct Answer
A. All of these answers.Explanation
The correct answer is "all of these answers." Since 1920, urban areas in the United States have indeed seen improvements in housing conditions, medical care, air and water quality, and sanitation. These improvements have been made over time to enhance the overall living conditions and well-being of urban residents.Rate this question:
-
- 7.
Good wilderness management would do all of the following except
-
Extensively patrol the accessible popular areas.
-
Offer permits to selected area for those who have demonstrated wilderness skills.
-
Leave some areas undisturbed by humans
-
Allow citizens to camp anywhere at their own risk.
-
Limit number of people using sites at any one time.
Correct Answer
A. Allow citizens to camp anywhere at their own risk.Explanation
Good wilderness management aims to protect and preserve natural areas while minimizing human impact. This includes limiting the number of people using sites at any one time to prevent overcrowding and damage to the environment. It also involves leaving some areas undisturbed by humans to maintain biodiversity and ecological balance. Additionally, offering permits to selected areas for those with demonstrated wilderness skills helps ensure that visitors are knowledgeable and responsible. Extensively patrolling accessible popular areas helps enforce regulations and prevent illegal activities. However, allowing citizens to camp anywhere at their own risk would not be a responsible approach as it could lead to environmental damage and safety hazards.Rate this question:
-
- 8.
Which of the following is not a factor that leads to urban sprawl?
-
High cost of gasoline
-
State and local zoning
-
Availability of mortgages
-
Government loan guarantees to veterans
-
Ample land for expansion
Correct Answer
A. High cost of gasolineExplanation
High cost of gasoline is not a factor that leads to urban sprawl because it discourages long commutes and encourages people to live closer to their workplaces. Urban sprawl is typically driven by factors such as state and local zoning regulations that allow for low-density development, the availability of mortgages that make it easier for people to buy homes in suburban areas, government loan guarantees to veterans that facilitate homeownership, and the presence of ample land for expansion on the outskirts of cities.Rate this question:
-
- 9.
Which of the following is not appropriate to use in describing a tropical rain forest?
-
Humid
-
Rich soil
-
Stratified
-
Diversity
-
Rainfall
Correct Answer
A. Rich soilExplanation
A tropical rainforest is characterized by high humidity, stratified layers of vegetation, high species diversity, and abundant rainfall. However, it does not typically have rich soil. The constant rainfall and rapid decomposition of organic matter in the rainforest result in nutrients being quickly absorbed by the plants, leaving the soil relatively poor in nutrients. Therefore, "rich soil" is not an appropriate characteristic to use in describing a tropical rainforest.Rate this question:
-
- 10.
The hydrologic cycle is driven primarily by
-
Solar energy and gravity.
-
Solar energy and the moon.
-
Solar energy and the mechanical energy.
-
Mechanical and chemical energy.
-
Chemical energy and the moon.
Correct Answer
A. Solar energy and gravity.Explanation
The hydrologic cycle, also known as the water cycle, involves the movement of water on Earth through various processes such as evaporation, condensation, and precipitation. Solar energy plays a crucial role in this cycle as it provides the energy needed for evaporation to occur. The heat from the sun causes water to change from a liquid state to a gaseous state, and this water vapor rises into the atmosphere. Gravity then plays a role in the hydrologic cycle by pulling the water vapor back down to Earth as precipitation, which can take the form of rain, snow, or hail. Therefore, solar energy and gravity are the primary driving forces behind the hydrologic cycle.Rate this question:
-
- 11.
Which of the following statements is false?
-
When environmental conditions are changing rapidly, a generalist is usually better off than a specialist.
-
The fundamental niche of a species is the full range of physical, chemical, and biological factors it could use if there were no competition.
-
The competitive exclusive principle states that no two species with the same fundamental niche can indefinitely occupy the same habitat.
-
Interspecific competition is competition between two members of the same species.
-
Intraspecific competition is competition between two members of the same species.
Correct Answer
A. Interspecific competition is competition between two members of the same species.Explanation
The statement "Interspecific competition is competition between two members of the same species" is false. Interspecific competition refers to competition between different species, not members of the same species. Intraspecific competition, on the other hand, is competition between individuals of the same species.Rate this question:
-
- 12.
To decay to what is considered to be a safe level a sample of radioisotope should be stored in a safe enclosure for approximately _____ half lives.
-
2
-
5
-
10
-
20
-
30
Correct Answer
A. 10Explanation
To decay to what is considered to be a safe level, a sample of radioisotope should be stored in a safe enclosure for approximately 10 half-lives. This is because during each half-life, half of the radioactive material decays, reducing the amount of radiation emitted. By storing the sample for 10 half-lives, the radiation level decreases significantly, making it safe for handling or disposal.Rate this question:
-
- 13.
Which of the following statements about the greenhouse effect is false?
-
The amount of heat trapped in the troposphere depends on the concentrations of greenhouse gases.
-
The greenhouse effect is a new theory that explains the warming of the atmosphere.
-
Heat trapped by greenhouse gases keeps the planet warm enough for life.
-
The two predominant greenhouse gases are water vapor and carbon dioxide.
-
It has been confirmed by numerous lab experiments and measurements of atmospheric temperatures at different altitudes.
Correct Answer
A. The greenhouse effect is a new theory that explains the warming of the atmosphere.Explanation
The greenhouse effect is not a new theory that explains the warming of the atmosphere. It is a well-established scientific concept that has been confirmed by numerous lab experiments and measurements of atmospheric temperatures at different altitudes. The greenhouse effect refers to the process by which certain gases in the Earth's atmosphere trap heat from the sun and prevent it from escaping back into space, thus keeping the planet warm enough for life. The two predominant greenhouse gases are water vapor and carbon dioxide, and the amount of heat trapped in the troposphere depends on the concentrations of these greenhouse gases.Rate this question:
-
- 14.
Sustainable agriculture is characterized by all of the following except
-
Promoting monoculture.
-
Lack of requirements of massive amounts of fossil fuels.
-
Conserving and building topsoil.
-
Lack of use of many artificial chemicals.
-
Promoting polyculture.
Correct Answer
A. Promoting monoculture.Explanation
Sustainable agriculture is characterized by several factors that promote environmental and economic sustainability. These include conserving and building topsoil, minimizing the use of artificial chemicals, and promoting polyculture, which involves growing multiple crops together. However, promoting monoculture, which refers to the practice of growing a single crop on a large scale, is not a characteristic of sustainable agriculture. Monoculture can lead to increased vulnerability to pests and diseases, soil degradation, and loss of biodiversity. Therefore, the correct answer is promoting monoculture.Rate this question:
-
- 15.
The quickest, cheapest, and most effective way to reduce the buildup of carbon dioxide in the atmosphere is to
-
Switch from fossil fuels to nuclear fuels.
-
Increase the efficiency of energy use.
-
Plant trees to trap more carbon dioxide.
-
Stop deforestation.
-
Slow population growth.
Correct Answer
A. Increase the efficiency of energy use.Explanation
Increasing the efficiency of energy use is the quickest, cheapest, and most effective way to reduce the buildup of carbon dioxide in the atmosphere. By improving the efficiency of energy consumption, less energy is wasted, resulting in reduced carbon dioxide emissions. This approach does not require a complete shift from fossil fuels to nuclear fuels or rely solely on planting trees or stopping deforestation, which may be more time-consuming and costly. Additionally, slowing population growth may have long-term effects on carbon dioxide reduction, but it is not as immediate or directly impactful as increasing energy efficiency.Rate this question:
-
- 16.
To qualify as a metropolitan area, a city must have a population of _______ people.
-
25,000
-
50,000
-
75,000
-
100,000
-
500,000
Correct Answer
A. 50,000Explanation
To qualify as a metropolitan area, a city must have a population of at least 50,000 people. This population threshold is typically used to distinguish between smaller urban areas and larger metropolitan areas. Metropolitan areas are characterized by higher population densities, economic activity, and social infrastructure compared to smaller cities or towns. The 50,000 population requirement ensures that a city has a sufficient size and scale to support the necessary infrastructure, services, and resources typically associated with metropolitan areas.Rate this question:
-
- 17.
Advantages of automobiles include all of the following except
-
Freedom to go where you want when you want.
-
Adventure.
-
Energy efficiency.
-
Provisions of jobs.
-
Convenience of use.
Correct Answer
A. Energy efficiency.Explanation
Automobiles offer various advantages such as the freedom to travel wherever and whenever desired, the opportunity for adventure, the provision of jobs, and the convenience they provide. However, energy efficiency is not one of these advantages. Automobiles are known to consume significant amounts of energy, particularly in terms of fuel consumption, making them less efficient compared to other modes of transportation.Rate this question:
-
- 18.
Which of the following statements is false?
-
The amount of solar energy reaching Earth's surface is dependent on latitude.
-
Hot air rises.
-
Air at the lower latitudes tends to cool and fall or sink downward.
-
Cool air is denser than warm air.
-
Cool air falls.
Correct Answer
A. Air at the lower latitudes tends to cool and fall or sink downward.Explanation
The statement "Air at the lower latitudes tends to cool and fall or sink downward" is false. In reality, air at the lower latitudes tends to be warmer and rise, while cooler air from higher latitudes sinks towards the surface. This movement of air is known as convection and is an important factor in weather patterns and climate.Rate this question:
-
- 19.
With 46% of the world's population, urban dwellers occupy about _____ of the planet's land area, but to meet their demands has required using or disturbing about _____ of the Earth's habitable land area.
-
20%...73%
-
20%...33%
-
44%...88%
-
4%...75%
-
50%...50%
Correct Answer
A. 4%...75%Explanation
Urban dwellers make up 46% of the world's population, but they only occupy about 4% of the planet's land area. However, meeting their demands has required using or disturbing about 75% of the Earth's habitable land area. This means that urbanization has had a significant impact on the environment, as a large amount of land has been transformed or utilized to cater to the needs of urban populations.Rate this question:
-
- 20.
Since 1860, mean global temperature has risen ____ degree(s) centigrade.
-
0.1-0.3
-
0.6-0.8
-
0.8-1.0
-
1.0-1.5
-
2.0-2.5
Correct Answer
A. 0.6-0.8Explanation
The correct answer is 0.6-0.8. This range represents the increase in mean global temperature since 1860. It indicates that the average temperature of the Earth has risen by 0.6 to 0.8 degrees Celsius over this time period. This increase is significant and demonstrates the impact of global warming on our planet.Rate this question:
-
- 21.
Today's cities are not self-sustaining because they import
-
Minerals.
-
Energy.
-
Food.
-
Manufactured goods.
-
All of these answers.
Correct Answer
A. All of these answers.Explanation
Today's cities are not self-sustaining because they rely on imports for various essential resources. They import minerals for construction and manufacturing, energy for power and transportation, food for sustenance, and manufactured goods for consumption. Without these imports, cities would struggle to meet their basic needs and maintain their infrastructure. Therefore, the correct answer is that cities are not self-sustaining because they import all of these resources.Rate this question:
-
- 22.
The UNICEF program to sharply reduce childhood deaths from improper nutrition would include all of the following except
-
Discouraging breastfeeding.
-
Preventing dehydration by giving infants sugar and salt in water.
-
Giving vitamin A supplements.
-
Providing family planning services.
-
Giving iron supplements.
Correct Answer
A. Discouraging breastfeeding.Explanation
The UNICEF program aims to reduce childhood deaths from improper nutrition. Breastfeeding is a crucial component of proper nutrition for infants, providing them with essential nutrients and antibodies. Therefore, it would not be included in a program that aims to reduce childhood deaths from improper nutrition. The other options, such as preventing dehydration, providing vitamin A and iron supplements, and offering family planning services, are all strategies that can contribute to improving nutrition and reducing childhood deaths.Rate this question:
-
- 23.
Which of the following cutting methods leaves only a few mature seed-producing, wind-resistant trees for the regeneration of forest?
-
Selective cutting
-
Seed-tree cutting
-
Clear-cutting
-
Shelterwood cutting
-
Strip cutting
Correct Answer
A. Seed-tree cuttingExplanation
Seed-tree cutting is a cutting method that leaves only a few mature seed-producing, wind-resistant trees for the regeneration of the forest. This method is used to ensure that there are enough trees in the area that can produce seeds and help in the natural regeneration of the forest. The selected seed trees are carefully chosen to have desirable characteristics and are left standing to provide a source of seeds for the new generation of trees. This method allows for the establishment of a new forest while still maintaining some mature trees for stability and seed production.Rate this question:
-
- 24.
Of the following forms of birth control, the least effective is
-
IUD plus spermicide.
-
An oral contraceptive.
-
A hormonal implant.
-
A condom (good brand).
-
The rhythm method.
Correct Answer
A. The rhythm method.Explanation
The rhythm method is considered the least effective form of birth control because it relies on tracking a woman's menstrual cycle to determine when she is most fertile and avoiding intercourse during that time. However, this method is highly dependent on the regularity of a woman's cycle and can be easily disrupted by factors such as stress or illness. Additionally, it does not provide any protection against sexually transmitted infections. In contrast, the other options listed (IUD plus spermicide, oral contraceptive, hormonal implant, condom) are all more effective at preventing pregnancy when used correctly.Rate this question:
-
- 25.
A form of clear-cutting that can allow a sustainable timer yield without widespread destruction is called
-
Selective cutting.
-
Seed-tree cutting.
-
Strip cutting.
-
Shelterwood cutting.
-
Straight cutting.
Correct Answer
A. Strip cutting.Explanation
Strip cutting is a form of clear-cutting that involves cutting trees in narrow strips or rows, leaving some trees standing between the cut strips. This method allows for a sustainable timber yield without causing widespread destruction because it maintains some forest cover and helps to protect the soil and water resources. By leaving some trees standing, strip cutting also provides habitat for wildlife and allows for natural regeneration of the forest. This method is often used in areas where clear-cutting would be too damaging to the ecosystem.Rate this question:
-
- 26.
Developed countries
-
A highly industrialized.
-
Have a low GNP per person.
-
Are generally located in Asia.
-
Make up about 80% of the world's population.
-
Use about 12% of the world's natural resources.
Correct Answer
A. A highly industrialized.Explanation
The correct answer is "a highly industrialized." This is because developed countries are characterized by having advanced industrial sectors and economies that rely heavily on manufacturing and technology. They typically have high levels of infrastructure, technology, and skilled labor, which contribute to their industrialization. This industrialization allows them to have higher standards of living, better healthcare, and more advanced education systems compared to developing countries.Rate this question:
-
- 27.
Which of the following is an example of low-quality energy?
-
Electricity
-
Heat in the ocean
-
Nuclei of uranium-235
-
Coal
-
Oil
Correct Answer
A. Heat in the oceanExplanation
Heat in the ocean is an example of low-quality energy because it is dispersed and difficult to harness for useful work. Unlike electricity, which can be easily converted into other forms of energy, or the nuclei of uranium-235, which can be used in nuclear reactions, heat in the ocean is not easily converted into a more concentrated or usable form of energy. Therefore, it is considered low-quality energy.Rate this question:
-
- 28.
Which of the following principles would most environmentalists <em>not</em> want to see being a guide to governance of public lands? Which of the following principles would most environmentalists not want to see being a guide to governance of public lands?
-
All users of public lands should be responsible for correcting any environmental damage they cause.
-
Protection of biodiversity and ecological integrity should be the most important goal.
-
Public lands should be used to enrich individual citizens to make a strong U.S. economy.
-
No one should be given subsidies or tax brakes for extracting resources on public lands.
-
The American people deserve fair compensation for the use of their properties.
Correct Answer
A. Public lands should be used to enrich individual citizens to make a strong U.S. economy.Explanation
Environmentalists would not want to see the principle that public lands should be used to enrich individual citizens to make a strong U.S. economy as a guide to governance of public lands. This principle prioritizes economic gain over environmental protection and biodiversity conservation, which goes against the core values and goals of environmentalists. They would instead prioritize principles such as responsibility for environmental damage, protection of biodiversity and ecological integrity, fair compensation for the use of public lands, and no subsidies or tax breaks for resource extraction.Rate this question:
-
- 29.
The world's marine catch is not expected to increase significantly. The factor least responsible for this trend is
-
Increased population growth.
-
Global warming.
-
Overfishing.
-
Water pollution.
-
A decline for few years.
Correct Answer
A. Global warming.Explanation
Global warming is the least responsible factor for the lack of significant increase in the world's marine catch. This is because global warming primarily affects the temperature and chemistry of the oceans, which can have negative impacts on marine ecosystems. However, overfishing, water pollution, and a decline in fish populations for a few years are more direct and immediate factors that directly contribute to the decrease in marine catch. Increased population growth can also indirectly contribute to overfishing and water pollution, further impacting the marine catch.Rate this question:
-
- 30.
The surface litter horizon is described by the letter
-
A.
-
B.
-
C.
-
O.
-
D.
Correct Answer
A. O. -
- 31.
Weather occurs
-
In the troposphere.
-
At a particular place.
-
At a particular time.
-
All of these answers.
-
None of these answers.
Correct Answer
A. All of these answers.Explanation
The statement "Weather occurs in the troposphere" is correct because the troposphere is the lowest layer of the Earth's atmosphere where weather phenomena such as clouds, precipitation, and storms take place. Additionally, weather occurs at a particular place because different regions experience different weather conditions. Furthermore, weather occurs at a particular time as it constantly changes throughout the day and seasons. Therefore, the correct answer is all of these answers.Rate this question:
-
- 32.
Cities established on barrier islands are subject to
-
Beach erosion.
-
Hurricanes.
-
Flooding.
-
All of these answers.
-
None of these answers.
Correct Answer
A. All of these answers.Explanation
Cities established on barrier islands are subject to beach erosion, hurricanes, and flooding. Barrier islands are naturally prone to erosion due to the constant action of waves and currents. Additionally, barrier islands are often located in coastal areas that are susceptible to hurricanes, which can cause extensive damage. Furthermore, the low-lying nature of barrier islands makes them vulnerable to flooding, especially during storms and high tides. Therefore, cities established on barrier islands are at risk of experiencing all of these issues.Rate this question:
-
- 33.
Based on the theory of island biogeography, you would predict that large islands near the mainland would have relatively
-
High immigration and low extinction rates.
-
High immigration and high extinction rates.
-
Low immigration and low extinction rates.
-
Low immigration and high extinction rates.
-
Not enough information to predict.
Correct Answer
A. High immigration and low extinction rates.Explanation
According to the theory of island biogeography, large islands near the mainland would have high immigration rates because they are closer to the source population on the mainland. This means that there would be a higher likelihood of individuals from the mainland colonizing the large island. On the other hand, large islands near the mainland would have low extinction rates because they offer a larger and more diverse habitat, which can support larger populations and reduce the risk of extinction. Therefore, the correct answer is high immigration and low extinction rates.Rate this question:
-
- 34.
Which of the following types of agriculture is most characteristic of developing countries?
-
Plantation agriculture
-
Traditional agriculture
-
Industrialized agriculture
-
Minimum-tillage agriculture
-
High-input agriculture
Correct Answer
A. Traditional agricultureExplanation
Traditional agriculture is most characteristic of developing countries because it is a subsistence-based form of farming that relies on traditional methods and tools, such as manual labor and simple tools. It is typically practiced by small-scale farmers who grow a variety of crops for their own consumption and local markets. This type of agriculture is often influenced by cultural and traditional practices, and it is less mechanized and reliant on external inputs compared to industrialized agriculture. Traditional agriculture is prevalent in developing countries where access to modern technology, capital, and resources is limited.Rate this question:
-
- 35.
According to pesticide proponents, pesticides
-
Work faster than alternate controls.
-
Increase profit for farmers.
-
Save lives and money.
-
Increase food supplies and lower costs.
-
All of these answers.
Correct Answer
A. All of these answers.Explanation
The correct answer is "all of these answers." Pesticide proponents argue that pesticides work faster than alternative controls, increase profit for farmers, save lives and money, and increase food supplies while lowering costs. This suggests that the use of pesticides has multiple benefits and can address various issues related to agriculture and public health.Rate this question:
-
- 36.
What does integrated coastal management accomplish?
-
Enlarges the exclusive economic zone
-
Reduces the number of marine protected areas
-
Supercedes the "Law of the Sea"
-
Provides a variety of protection and use levels
-
Allows for unlimited development
Correct Answer
A. Provides a variety of protection and use levelsExplanation
Integrated coastal management accomplishes providing a variety of protection and use levels. This means that it aims to balance the protection and conservation of coastal ecosystems with the sustainable use of coastal resources. It involves the coordination and integration of various stakeholders, including government agencies, local communities, and industries, to ensure that coastal areas are managed in a way that meets both environmental and socioeconomic objectives. This approach recognizes that coastal areas are valuable and vulnerable ecosystems that require careful management to ensure their long-term sustainability.Rate this question:
-
- 37.
Which of the following is the most restricted of all public areas?
-
National parks
-
National forests
-
National resource lands
-
National wildlife refuges
-
National wilderness areas
Correct Answer
A. National wilderness areasExplanation
National wilderness areas are the most restricted of all public areas because they are designated to preserve and protect the natural environment in its most pristine state. These areas have minimal human impact and are managed to maintain their wilderness character, which means that activities such as motorized vehicles, infrastructure development, and resource extraction are generally prohibited. This level of restriction ensures that wilderness areas remain untouched by human activities and provide a sanctuary for wildlife and ecosystems to thrive undisturbed.Rate this question:
-
- 38.
All of the following are abiotic factors except
-
Light.
-
Bacteria.
-
PH.
-
Size of soil particles.
-
Water.
Correct Answer
A. Bacteria.Explanation
Abiotic factors refer to non-living components of an ecosystem that can influence living organisms. Light, pH, size of soil particles, and water are all abiotic factors as they do not possess life. Bacteria, on the other hand, are living organisms and therefore cannot be considered as abiotic factors.Rate this question:
-
- 39.
Which of the following choices would make the statement false? Economic growth
-
Provides good and services for people's final use.
-
Is accomplished by minimizing the flow of matter and energy through and economy.
-
Is encouraged by population growth.
-
Is encouraged by increased consumption per capita
-
All of these answers.
Correct Answer
A. Is accomplished by minimizing the flow of matter and energy through and economy. -
- 40.
Which of the following statements is true?
-
Exposure of a substance to alpha, beta, or gamma radiation makes it radioactive.
-
All isotopes are radioactive.
-
Radioactive isotopes give off radiation at a fixed rate.
-
Only naturally occurring substances are radioactive.
-
Radioactive isotopes give off radiation at variable rates.
Correct Answer
A. Radioactive isotopes give off radiation at a fixed rate.Explanation
Radioactive isotopes give off radiation at a fixed rate. This means that the rate at which the isotopes emit radiation does not change over time. This characteristic of radioactive isotopes is important in various applications such as nuclear medicine and radiometric dating. It allows scientists to accurately measure the amount of radiation emitted by these isotopes and use it to determine the age of materials or diagnose medical conditions.Rate this question:
-
- 41.
Energy can be formally defined as
-
The random motion of molecules.
-
The ability to do work or produce heat transfer.
-
A force that is exerted over some distance.
-
The movement of molecules.
-
The loss of matter.
Correct Answer
A. The ability to do work or produce heat transfer.Explanation
The correct answer is "the ability to do work or produce heat transfer." This definition of energy encompasses its two main forms: the capacity to perform work and the ability to transfer heat. Energy is not specifically related to the random motion of molecules, the exertion of force over a distance, the movement of molecules, or the loss of matter.Rate this question:
-
- 42.
The fragility of the desert ecosystem is indicated by
-
The high growth rate of plants.
-
Moderate species diversity.
-
Abundant groundwater.
-
Long regeneration time from vegetation destruction.
-
Having shallow roots.
Correct Answer
A. Long regeneration time from vegetation destruction.Explanation
The fragility of the desert ecosystem is indicated by the long regeneration time from vegetation destruction. This means that when plants in the desert are destroyed, it takes a significant amount of time for them to grow back. This suggests that the ecosystem is not resilient and is easily disrupted by disturbances. The other options, such as high growth rate of plants, moderate species diversity, abundant groundwater, and having shallow roots, do not necessarily indicate fragility as they can be present in a healthy and robust ecosystem.Rate this question:
-
- 43.
A shark is least likely to be killed
-
By a predator.
-
For sport.
-
Out of fear.
-
For food.
-
For their jaws.
Correct Answer
A. By a predator.Explanation
Sharks are apex predators and are at the top of the food chain, meaning they have few natural predators. They are highly adapted for hunting and have few threats in their natural environment. Therefore, it is unlikely for a shark to be killed by another predator.Rate this question:
-
- 44.
In alley cropping,
-
Crops are planted between hedgerows of trees or shrubs that are used for fruits or fuelwood.
-
Terrace are built to prevent swift water runoff.
-
Plowing runs across slopes.
-
Special tillers are used so the topsoil is not disturbed.
-
A row crops alternates in strips with another row crop.
Correct Answer
A. Crops are planted between hedgerows of trees or shrubs that are used for fruits or fuelwood.Explanation
In alley cropping, crops are planted between hedgerows of trees or shrubs that are used for fruits or fuelwood. This practice allows for the simultaneous cultivation of annual crops and the production of trees or shrubs for additional benefits such as providing fruits or fuelwood. The trees or shrubs act as windbreaks, provide shade, and help in reducing soil erosion. This system promotes sustainable agriculture by maximizing land use efficiency and diversifying income sources for farmers.Rate this question:
-
- 45.
To help protect the food supply and fight pests responsibly, individuals can
-
Use larger amounts of pesticides when necessary.
-
Dispose of unused pesticide where it will continue to kill pests.
-
Allow native plants to cover most of their property.
-
Use powerful synthetic to pesticides.
-
Help eradicate all pests everywhere.
Correct Answer
A. Allow native plants to cover most of their property.Explanation
Allowing native plants to cover most of their property can help protect the food supply and fight pests responsibly. Native plants provide habitat and food sources for beneficial insects and birds that can naturally control pest populations. They also help to maintain biodiversity and ecological balance, reducing the need for pesticides. By encouraging the growth of native plants, individuals can create a more sustainable and environmentally-friendly approach to pest management.Rate this question:
-
- 46.
Characteristics that make amphibians particularly sensitive to pollution include
-
Living part of their life cycle in water and part on land.
-
Soft, permeable skin.
-
Sensitivity to ultraviolet radiation.
-
All of these answers.
-
None of these answers.
Correct Answer
A. All of these answers.Explanation
Amphibians are particularly sensitive to pollution due to a combination of factors. Firstly, they have a life cycle that involves living in both water and on land, making them vulnerable to pollutants in both environments. Additionally, amphibians have soft and permeable skin, which allows for the absorption of pollutants from the surrounding water or soil. Lastly, they are also sensitive to ultraviolet radiation, which can be intensified by pollution. Therefore, all of these characteristics contribute to the heightened sensitivity of amphibians to pollution.Rate this question:
-
- 47.
Microclimates are least likely to be produced by
-
Mountains.
-
Bodies of water.
-
Cities.
-
Flat plains.
-
Sand dunes.
Correct Answer
A. Flat plains.Explanation
Microclimates are small-scale variations in weather conditions within a larger region. They are influenced by various factors such as topography, vegetation, and bodies of water. Mountains, bodies of water, cities, and sand dunes can all create microclimates due to their unique characteristics. However, flat plains are less likely to produce microclimates because they lack significant variations in elevation or other features that can influence weather patterns. Therefore, flat plains are the least likely to create microclimates.Rate this question:
-
- 48.
Autotrophs
-
Can live without heterotrophs.
-
Are know as producers.
-
Carry on photosynthesis.
-
All of these answers.
-
None of these answers.
Correct Answer
A. All of these answers.Explanation
The correct answer is "all of these answers." Autotrophs are organisms that can produce their own food through photosynthesis, allowing them to live without relying on heterotrophs for nutrition. They are also known as producers because they are capable of synthesizing organic molecules from inorganic substances. Therefore, all of the given statements are true for autotrophs.Rate this question:
-
- 49.
The organisms that are classified as primary consumers are the
-
Detritivores.
-
Omnivores.
-
Carnivores.
-
Decomposers.
-
Herbivores.
Correct Answer
A. Herbivores.Explanation
The organisms that are classified as primary consumers are herbivores. Herbivores are organisms that primarily feed on plants or plant material. They obtain their energy by consuming producers, such as plants, and are considered the first level of consumers in a food chain or food web. They play a crucial role in transferring energy from plants to higher trophic levels in an ecosystem. Detritivores, omnivores, carnivores, and decomposers are not classified as primary consumers as they have different feeding habits and occupy different trophic levels in the food chain.Rate this question:
-
Quiz Review Timeline (Updated): Mar 22, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Jun 16, 2010Quiz Created by
Mmmaxwell
Back to top