M&e Mec 280: Exam #1
Questions and Answers
- 1.
The definition of 'pollute' is to make unclean, impure, or corrupt, as well as... Which of the following does NOT belong?
- A.
Desecrate
- B.
Defile
- C.
Regulate
- D.
Dirty
Correct Answer
C. RegulateExplanation
The word "pollute" means to make something unclean or impure. The words "desecrate," "defile," and "dirty" all have similar meanings and can be used interchangeably with "pollute." However, the word "regulate" does not belong in this group as it means to control or maintain order, rather than making something unclean or impure.Rate this question:
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- 2.
In children, lead interferes with the development of the...
- A.
Kidney
- B.
Liver
- C.
Heart
- D.
Brain
Correct Answer
D. BrainExplanation
Lead is a toxic substance that can have detrimental effects on the development of children. When lead enters the body, it can interfere with the normal functioning of the brain. This interference can disrupt the growth and development of the brain, leading to cognitive and behavioral problems. It can affect learning abilities, attention span, and overall intellectual development. Therefore, it is important to minimize exposure to lead in order to protect the brain development of children.Rate this question:
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- 3.
In ecosystems, organisms are in deadly competition with each other for evolutionary survival.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
In ecosystems, organisms may compete with each other for resources, but this competition is not always deadly or life-threatening. Organisms can also have symbiotic relationships or coexist peacefully. Therefore, the statement that organisms are in deadly competition with each other for evolutionary survival is not entirely accurate.Rate this question:
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- 4.
Nearly all solutions to pollution problems are political.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This statement suggests that most solutions to pollution problems require political intervention or action. It implies that addressing pollution issues involves making policy changes, implementing regulations, and engaging in political processes to find effective solutions. This aligns with the understanding that pollution is a complex problem that requires collaboration among various stakeholders, including government bodies, to implement effective measures and enforce environmental laws.Rate this question:
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- 5.
Which of the following is not true about ecosystems?
- A.
Vary in size
- B.
Open system
- C.
Weather connects all ecosystems
- D.
Unlimited population size
Correct Answer
D. Unlimited population sizeExplanation
The statement "Unlimited population size" is not true about ecosystems. Ecosystems have a limited carrying capacity, which means that they can only support a certain number of individuals within a given species. If the population exceeds this capacity, it can lead to resource depletion and environmental degradation. Therefore, the population size in ecosystems is not unlimited.Rate this question:
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- 6.
Which of the following was the most deadly diseases during the year 1900?
- A.
Coronary Disease
- B.
Cancer Disease
- C.
Asthma Disease
- D.
Infectious Disease
Correct Answer
D. Infectious DiseaseExplanation
During the year 1900, infectious diseases were the most deadly. This is because medical advancements and treatments for infectious diseases were limited during that time, leading to a higher mortality rate. Additionally, hygiene practices and understanding of disease transmission were not as advanced as they are today, making it easier for infectious diseases to spread and cause widespread fatalities.Rate this question:
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- 7.
An ecosystem is made up of organisms plus that part of the environment with which the organisms interact.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This statement is true because an ecosystem refers to a community of living organisms (plants, animals, and microorganisms) in conjunction with the nonliving components of their environment (such as air, water, and soil), and the interactions between them. The organisms in an ecosystem rely on the resources and conditions provided by their environment to survive and thrive. Therefore, an ecosystem is indeed composed of both organisms and the environment they interact with.Rate this question:
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- 8.
The term "organisms" in an ecosystem refer to....
- A.
Animals
- B.
Plants
- C.
Microorganisms
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The term "organisms" in an ecosystem refers to all living beings present in that ecosystem, including animals, plants, and microorganisms. All of these organisms play a crucial role in maintaining the balance and functioning of the ecosystem. Animals contribute to the food chain, pollination, and nutrient cycling. Plants provide oxygen, food, and shelter for other organisms. Microorganisms are involved in decomposition, nutrient recycling, and symbiotic relationships. Therefore, the correct answer is "All of the above" as it encompasses all the different types of organisms present in an ecosystem.Rate this question:
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- 9.
The phenomenon in which two agents acting together create an effect greater than that predicted by knowing only the separate effect of the individual agent is known as...
- A.
Bifurcation
- B.
Carrying Capacity
- C.
Synergism
- D.
Antagonism
Correct Answer
C. SynergismExplanation
Synergism refers to the phenomenon in which two agents working together produce a greater effect than what would be expected based on the individual effects of each agent. It implies that the combined effect is more than just the sum of the individual effects, suggesting a cooperative and mutually beneficial interaction between the agents. This term is commonly used in various fields such as biology, chemistry, and business to describe the positive outcome of collaboration and cooperation.Rate this question:
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- 10.
The phenomenon in which two agents acting together create an effect lesser than that predicted by knowing only the separate effect of the individual agent is known as...
- A.
Bifurcation
- B.
Carrying Capacity
- C.
Synergism
- D.
Antagonism
Correct Answer
D. AntagonismExplanation
Antagonism is the correct answer because it refers to the phenomenon where two agents working together produce a lesser effect than what would be expected based on the individual effects of each agent. In other words, there is a decrease in the combined effect when compared to the sum of the separate effects. This concept is commonly observed in fields such as pharmacology, where certain drugs may counteract or weaken the effects of each other when taken together.Rate this question:
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- 11.
If TFR < 2.1 the population usually...
- A.
Contracts
- B.
Grows
Correct Answer
A. ContractsExplanation
If the Total Fertility Rate (TFR) is less than 2.1, it indicates that the average number of children born to a woman in a population is below the replacement level. This means that each successive generation is smaller than the previous one, leading to a decrease in population size over time. Therefore, the population usually contracts or decreases when TFR is less than 2.1.Rate this question:
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- 12.
One of the pollutants associated with the Owens Lake problem was...
- A.
Mercury
- B.
Smog
- C.
Arsenic
- D.
Lead
Correct Answer
C. ArsenicExplanation
Arsenic is one of the pollutants associated with the Owens Lake problem. This suggests that arsenic was present in the lake and causing pollution. Arsenic is a toxic substance that can be harmful to both human health and the environment. Its presence in the lake could have resulted from various sources such as industrial activities or natural deposits in the region. The contamination of the lake with arsenic would have required remediation efforts to mitigate the environmental and health risks associated with it.Rate this question:
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- 13.
Archeological records indicate that the first homo sapiens appeared about...
- A.
30 million years ago
- B.
150 thousand years ago
- C.
30 thousand years ago
- D.
10 thousand years ago
Correct Answer
B. 150 thousand years agoExplanation
The correct answer is 150 thousand years ago. Archeological records provide evidence that the first homo sapiens, or modern humans, appeared around this time. These records include fossil remains, tools, and other artifacts that have been discovered and studied by archaeologists. This timeline aligns with the current scientific understanding of human evolution and the development of our species.Rate this question:
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- 14.
The Industrial Revolution began in the early part of which century?
- A.
16th
- B.
17th
- C.
18th
- D.
19th
Correct Answer
C. 18thExplanation
The Industrial Revolution began in the 18th century. This period saw a significant shift from handmade goods to machine-made goods, as well as the development of new technologies and industries. The revolution started in Britain and later spread to other parts of Europe and North America. It had a profound impact on society, transforming economies, and leading to urbanization and social changes.Rate this question:
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- 15.
According to recent estimates the human carrying capacity of earth is...
- A.
5 to 7 billion
- B.
7 to 12 billion
- C.
12 to 16 billion
- D.
16 to 20 billion
Correct Answer
B. 7 to 12 billionExplanation
The correct answer is 7 to 12 billion because recent estimates suggest that the Earth can sustain a human population within this range. This estimate takes into consideration factors such as available resources, technological advancements, and the ability to adapt and manage the environment. It is important to note that this estimate is not fixed and can change over time based on various factors such as changes in technology, resource availability, and environmental conditions.Rate this question:
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- 16.
When did human agriculture begin? (approximately)
- A.
30,000 years ago
- B.
20,000 years ago
- C.
10,000 years ago
- D.
1,000 years ago
Correct Answer
C. 10,000 years agoExplanation
Approximately 10,000 years ago is the correct answer for when human agriculture began. This is known as the Neolithic Revolution, a period when humans transitioned from a nomadic lifestyle to settled farming communities. This development marked a significant shift in human history as it led to the domestication of plants and animals, allowing for the cultivation of crops and the establishment of permanent settlements. The advent of agriculture also brought about changes in social structures, technology, and the overall way of life for early human societies.Rate this question:
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- 17.
During the agricultural period, diseases became more common by means of...
- A.
Transmission
- B.
Accumulated Wastes
- C.
Diet Changes
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
During the agricultural period, diseases became more common due to various factors. Transmission refers to the spread of diseases from one person to another, which could have been facilitated by increased contact among individuals in agricultural societies. Accumulated wastes, such as stagnant water or animal waste, can create breeding grounds for disease-carrying organisms. Diet changes during the agricultural period, including the consumption of new crops and domesticated animals, could have introduced new pathogens or altered the balance of nutrients in people's diets, making them more susceptible to diseases. Therefore, all of the above factors contributed to the increased prevalence of diseases during the agricultural period.Rate this question:
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- 18.
When approximately was the homo habilis evolved?
- A.
2.5 million years ago
- B.
3 million years ago
- C.
40,000 years ago
- D.
250,000 years ago
Correct Answer
A. 2.5 million years agoExplanation
Homo habilis, an early human species, is believed to have evolved approximately 2.5 million years ago. This species is considered one of the earliest members of the Homo genus and is known for its tool-making abilities, which distinguish it from earlier hominin species. The timeframe of 2.5 million years ago aligns with the current scientific consensus on the emergence of Homo habilis based on fossil evidence and dating techniques.Rate this question:
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- 19.
Which among all species, is the least similar to modern humans?
- A.
Homo Habilis
- B.
Homo Erectus
- C.
Cro Magnon
- D.
None of the above
Correct Answer
A. Homo HabilisExplanation
Homo Habilis is the least similar to modern humans because it is an early species of the Homo genus that lived around 2.4 to 1.4 million years ago. They had a smaller brain size and a more ape-like appearance compared to modern humans. Homo Erectus, on the other hand, lived later and had a larger brain size and more human-like features. Cro Magnon refers to early modern humans who lived around 40,000 to 10,000 years ago and are considered anatomically similar to modern humans. Therefore, Homo Habilis is the least similar to modern humans out of the given options.Rate this question:
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- 20.
After about 25,000 years, the Cro Magnon numbers had increased to around...
- A.
20 million
- B.
10 million
- C.
5 million
- D.
3 million
Correct Answer
C. 5 millionExplanation
The correct answer is 5 million. This suggests that the population of Cro Magnon people, a prehistoric human population, had increased to around 5 million after approximately 25,000 years. This indicates a significant growth in their numbers over time.Rate this question:
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- 21.
Today the earth's human population is about...
- A.
5 million
- B.
500 million
- C.
6 billion
- D.
60 billion
Correct Answer
C. 6 billionExplanation
The earth's human population is currently estimated to be around 7.9 billion. However, since the question does not provide the most up-to-date information, we can assume that at the time the question was created, the estimated population was around 6 billion.Rate this question:
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- 22.
Which of the following is a path that pollutants can take to enter the human body?
- A.
Skin
- B.
Alimentary Canal
- C.
Respiratory System
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Pollutants can enter the human body through various pathways. The skin is one such pathway where pollutants can be absorbed directly into the bloodstream. The alimentary canal, which includes the mouth, esophagus, stomach, and intestines, is another pathway where pollutants can enter the body through ingestion of contaminated food or water. The respiratory system is also a pathway where pollutants can enter through inhalation of polluted air. Therefore, all of the above options are correct as they represent different pathways through which pollutants can enter the human body.Rate this question:
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- 23.
In the United States, the incidence of asthma has .... since 1980.
- A.
Doubled
- B.
Tripled
- C.
One and one-halved
- D.
None of the above
Correct Answer
B. TripledExplanation
The correct answer is "Tripled." This means that the incidence of asthma in the United States has increased threefold since 1980. This implies a significant rise in the number of asthma cases over the years, indicating a concerning trend.Rate this question:
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- 24.
What is/are the source(s) of uncertainty using animal studies i) use very high doses ii) use of different animals iii) use of small samples
- A.
I only
- B.
Ii only
- C.
I, ii only
- D.
I, iii only
- E.
I, ii, iii
Correct Answer
E. I, ii, iiiExplanation
Animal studies can introduce uncertainty due to various factors. Firstly, using very high doses can lead to uncertainty as the effects observed may not be representative of real-life exposure levels. Secondly, using different animals can introduce uncertainty as different species may respond differently to the same treatment or substance. Lastly, using small samples can also introduce uncertainty as the findings may not be generalizable to the larger population. Therefore, all three sources of uncertainty (i, ii, iii) are applicable in animal studies.Rate this question:
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- 25.
Which of the following is a primary pollutant emission from gasoline-fueled automobiles?
- A.
NOx
- B.
VHC
- C.
CO
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Gasoline-fueled automobiles emit several primary pollutants, including NOx (nitrogen oxides), VHC (volatile hydrocarbons), and CO (carbon monoxide). These pollutants are released into the atmosphere during the combustion of gasoline in the engine. NOx contributes to the formation of smog and acid rain, VHC contributes to the formation of ground-level ozone, and CO is a poisonous gas that can be harmful to human health. Therefore, the correct answer is "All of the above" because all three pollutants are emitted by gasoline-fueled automobiles.Rate this question:
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- 26.
New York State has a serious acid rain problem. The above average acid rainfall in New York is largely due to pollutants generated in...
- A.
States North of New York
- B.
States East of New York
- C.
States South of New York
- D.
States West of New York
Correct Answer
D. States West of New YorkExplanation
The correct answer is "States West of New York". This is because prevailing winds in the United States generally blow from west to east. Therefore, pollutants generated in the states west of New York are carried by the wind and contribute to the above average acid rainfall in New York.Rate this question:
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- 27.
Which of the following is a primary pollutant generated by gasoline engines?
- A.
CO2
- B.
SOx
- C.
NOx
- D.
H2O
Correct Answer
C. NOxExplanation
NOx (nitrogen oxides) is a primary pollutant generated by gasoline engines. It is formed when nitrogen in the air reacts with oxygen at high temperatures and pressures in the engine's combustion process. NOx emissions contribute to the formation of smog and acid rain, and can also have negative health effects.Rate this question:
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- 28.
Which of these childhood diseases is not infectious?
- A.
Chicken pox
- B.
Asthma
- C.
Polio
- D.
Mumps
Correct Answer
B. AsthmaExplanation
Asthma is not an infectious disease. It is a chronic respiratory condition characterized by inflammation and narrowing of the airways, leading to difficulty in breathing. Unlike the other options, chickenpox, polio, and mumps are all infectious diseases caused by viruses. Asthma, on the other hand, is a non-communicable disease that can be triggered by various factors such as allergies, pollution, or exercise.Rate this question:
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- 29.
Ozone levels in Los Angles are greatest in the late evening hours.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Ozone is created only when sun shines on auto emissions. Ozone levels are low in the morning and rise throughout the daylight hours as the sun's energy creates ozone from car exhaust.Rate this question:
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- 30.
Which of the following is not a heavy metal toxic to humans?
- A.
Carbon
- B.
Mercury
- C.
Lead
- D.
Cadmium
Correct Answer
A. CarbonExplanation
Carbon is not a heavy metal toxic to humans. Heavy metals are elements with high atomic weights that can be toxic to humans when ingested or inhaled. Mercury, lead, and cadmium are all heavy metals that can cause various health issues when exposed to humans. However, carbon is a non-metal element that is essential for life and is not considered toxic to humans.Rate this question:
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- 31.
NY state has a serious acid rain problem. If the state passes and enforces strict laws this will solve the problem.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Passing and enforcing strict laws alone may not necessarily solve the serious acid rain problem in NY state. While strict laws can be an important step towards reducing acid rain, other factors such as implementing effective pollution control measures, promoting renewable energy sources, and international cooperation may also be needed to fully address the issue. Therefore, the statement that passing and enforcing strict laws will solve the problem is not entirely accurate.Rate this question:
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- 32.
Since leaded gasoline is no longer used in the US and Canada, this pollutant is no longer a health threat in North America.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
This statement is false because although leaded gasoline is no longer used in the US and Canada, lead pollution can still be a health threat in North America. Lead can still be found in the environment from past use of leaded gasoline, as well as from other sources such as old paint, contaminated soil, and industrial emissions. Ingesting or inhaling lead can lead to various health issues, especially in children, including developmental delays, learning disabilities, and behavioral problems. Therefore, lead pollution remains a concern in North America despite the absence of leaded gasoline.Rate this question:
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- 33.
What is the chemical formula for Nitro-Methane?
- A.
CH3NO
- B.
CH3OH
- C.
CH3NO2
- D.
N2O
Correct Answer
C. CH3NO2Explanation
The chemical formula for Nitro-Methane is CH3NO2. Nitro-Methane is an organic compound that consists of one carbon atom bonded to three hydrogen atoms, one nitrogen atom, and two oxygen atoms. The formula CH3NO2 accurately represents the composition of Nitro-Methane.Rate this question:
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- 34.
What was the main reason for the United States to ban leaded gasoline beginning in the early 1970's (main reason)?
- A.
Price of gasoline
- B.
Environmental reasons
- C.
Poisoned catalyst
- D.
All of the above
Correct Answer
C. Poisoned catalystExplanation
The main reason for the United States to ban leaded gasoline beginning in the early 1970s was because it poisoned the catalyst. Leaded gasoline contained tetraethyl lead, which was used as an additive to boost octane ratings. However, this leaded fuel caused damage to the catalytic converters in cars, which are essential for reducing harmful emissions. As a result, the United States decided to ban leaded gasoline to protect the functioning of the catalysts and reduce air pollution.Rate this question:
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- 35.
The majority of SOx pollution comes from...
- A.
Nuclear plants
- B.
Diesel engines
- C.
Power plants
- D.
Automobiles
Correct Answer
C. Power plantsExplanation
Power plants are the correct answer because they are the largest source of SOx pollution. Power plants burn fossil fuels, such as coal and oil, to generate electricity, and this combustion process releases sulfur dioxide (SO2) into the atmosphere. SO2 is a major contributor to SOx pollution, which can cause respiratory problems, acid rain, and other environmental issues. While diesel engines and automobiles also emit SOx, their overall contribution is lower compared to power plants. Nuclear plants do not produce SOx pollution as they do not burn fossil fuels for energy generation.Rate this question:
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- 36.
The pH of normal rain is generally close to...
- A.
9.0
- B.
7.0
- C.
5.0
- D.
3.0
Correct Answer
C. 5.0Explanation
The pH of normal rain is generally close to 5.0. This is because rainwater naturally combines with carbon dioxide in the atmosphere, forming carbonic acid, which lowers the pH of the rainwater. A pH of 5.0 is considered slightly acidic, but still within the range of what is considered normal for rainwater.Rate this question:
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- 37.
The pH of acid rain is generally close to...
- A.
5.0
- B.
7.0
- C.
4.0
- D.
3.0
Correct Answer
C. 4.0Explanation
The correct answer is 4.0 because acid rain is formed when pollutants such as sulfur dioxide and nitrogen oxides react with water vapor in the atmosphere, forming sulfuric acid and nitric acid. These acids have a pH below 7, indicating acidity. A pH of 4.0 is considered acidic, which is consistent with the nature of acid rain.Rate this question:
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- 38.
Which of the following in the United States is a primary source of energy production?
- A.
Coal
- B.
Natural gas
- C.
Methane
- D.
All of the above
Correct Answer
A. CoalExplanation
Coal is a primary source of energy production in the United States. It is a fossil fuel that is mined from the earth and burned to generate electricity. Coal has been a major source of energy for many years in the United States, although its use has been declining in recent years due to concerns about its environmental impact and the increasing use of cleaner energy sources. Nonetheless, coal still plays a significant role in the country's energy production.Rate this question:
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- 39.
Fermenting cow manure can be used to produce (pollution movie)?
- A.
Butane
- B.
Methane
- C.
Petroleum
- D.
Water
Correct Answer
B. MethaneExplanation
Fermenting cow manure can be used to produce methane. Methane is a byproduct of the decomposition of organic matter in anaerobic conditions, such as in the fermentation of manure. This process, known as anaerobic digestion, involves the breakdown of organic materials by bacteria, which produce methane as a result. Methane can be used as a source of energy and is considered a cleaner alternative to fossil fuels. Therefore, fermenting cow manure can be a sustainable way to produce methane and utilize organic waste.Rate this question:
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- 40.
Ozone production peaks...
- A.
In the early morning
- B.
In the late afternoon
- C.
In the evening
- D.
All of the above
Correct Answer
B. In the late afternoonExplanation
Ozone production peaks in the late afternoon because during this time, the sun is at its highest point in the sky, providing the most intense sunlight. This intense sunlight causes a chemical reaction in the atmosphere, leading to the production of ozone. In the early morning and evening, the sun is lower in the sky, resulting in less intense sunlight and therefore lower ozone production.Rate this question:
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- 41.
The Little ice Age lasted about (LIA Movie)?
- A.
40 Years
- B.
100 Years
- C.
500 Years
- D.
1200 Years
Correct Answer
C. 500 YearsExplanation
The Little Ice Age lasted for approximately 500 years. This period, which occurred from the 14th to the 19th century, was characterized by a significant cooling of the Earth's climate. It led to colder winters, shorter growing seasons, and even the freezing of rivers and lakes in some regions. The Little Ice Age had a profound impact on human societies, causing crop failures, famine, and economic decline. It is believed to have been caused by a combination of volcanic activity, solar variations, and changes in ocean circulation patterns.Rate this question:
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- 42.
A synonym for "pollute" is...
- A.
Adjudicate
- B.
Defile
- C.
Regulate
- D.
Clean
Correct Answer
B. DefileExplanation
The word "defile" is a suitable synonym for "pollute" because it means to make something dirty, impure, or contaminated. Just like "pollute," "defile" implies the act of causing harm or damage to the environment or something that was previously clean or pure. It accurately captures the negative connotation associated with pollution and aligns with the idea of making something unclean or impure. Therefore, "defile" is the most appropriate choice as a synonym for "pollute."Rate this question:
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- 43.
During the Little Ice Age the average world temperature drop was about (LIA Movie)...
- A.
1 Degree F
- B.
4 Degree F
- C.
11 Degree F
- D.
18 Degree F
Correct Answer
B. 4 Degree FExplanation
During the Little Ice Age, which occurred from the 14th to the 19th century, the average world temperature dropped by approximately 4 degrees Fahrenheit. This period was characterized by colder winters and cooler summers, leading to the expansion of glaciers and the freezing of rivers and lakes in various parts of the world. The drop in temperature had significant impacts on agriculture, causing crop failures and famine in some regions. The cooling trend gradually reversed in the mid-19th century, marking the end of the Little Ice Age.Rate this question:
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- 44.
In which century did the LIA begin?
- A.
12th
- B.
13th
- C.
14th
- D.
15th
Correct Answer
C. 14thExplanation
The Little Ice Age (LIA) is believed to have started in the 14th century. This period was characterized by a significant drop in temperatures, resulting in colder winters and shorter growing seasons. Historical records and scientific evidence suggest that the LIA lasted until the 19th century, impacting agriculture, population, and economies around the world.Rate this question:
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- 45.
Which of the following is a fossil fuel?
- A.
Coal
- B.
Oil
- C.
Natural gas
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Coal, oil, and natural gas are all classified as fossil fuels. Fossil fuels are formed from the remains of ancient plants and animals that have been buried and subjected to high heat and pressure over millions of years. These fuels are non-renewable resources and are considered the main source of energy worldwide. Coal is formed from the remains of plants, oil is formed from the remains of marine organisms, and natural gas is formed from the remains of both plants and animals. Therefore, all three options mentioned in the question are correct and can be classified as fossil fuels.Rate this question:
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- 46.
Which of the following is a direct health effect as a result of CO?
- A.
Dizziness
- B.
Headaches
- C.
Heart Stress
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Exposure to carbon monoxide (CO) can lead to various direct health effects. Dizziness can occur as a result of CO poisoning, as it reduces the oxygen-carrying capacity of the blood. Headaches are another common symptom, caused by the lack of oxygen reaching the brain. CO also puts stress on the heart, as it binds to hemoglobin in the blood, reducing its ability to transport oxygen. Therefore, all of the given options - dizziness, headaches, and heart stress - are direct health effects of CO exposure.Rate this question:
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- 47.
Which of the following is a direct health effect as a result of Ozone?
- A.
Dizziness
- B.
Respiratory irritant
- C.
Measles
- D.
All of the above
Correct Answer
B. Respiratory irritantExplanation
Ozone is a respiratory irritant, meaning it can cause irritation and inflammation in the respiratory system. This can lead to symptoms such as coughing, wheezing, shortness of breath, and chest tightness. Unlike dizziness and measles, which are not directly caused by ozone exposure, respiratory irritation is a direct health effect that can occur as a result of ozone exposure.Rate this question:
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- 48.
To take a mixture of N2, O2, CO, NOx, and VHC's and turn it into a nice smog you need to add...
- A.
CO2
- B.
Gamma rays
- C.
H2
- D.
Sunlight
Correct Answer
D. SunlightExplanation
Sunlight is required to convert the mixture of N2, O2, CO, NOx, and VHC's into smog. Sunlight plays a crucial role in the process of photochemical smog formation. When sunlight interacts with the pollutants in the atmosphere, it initiates a series of chemical reactions that lead to the formation of smog. These reactions involve the breaking and rearranging of chemical bonds, resulting in the formation of various smog components such as ozone, nitrogen dioxide, and volatile organic compounds. Therefore, sunlight is necessary for the transformation of the mentioned mixture into smog.Rate this question:
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- 49.
One of the end products of the catalytic reactions involving NOx is...
- A.
N2O
- B.
CO
- C.
NO2
- D.
None of the above
Correct Answer
A. N2OExplanation
One of the end products of catalytic reactions involving NOx is N2O.Rate this question:
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- 50.
Which of the following in the US is a primary source of energy production? I. Oil II. Coal III. Natural gas
- A.
I only
- B.
III only
- C.
I, III only
- D.
I, II only
- E.
I, II, III
Correct Answer
D. I, II onlyExplanation
Oil and coal are both primary sources of energy production in the US. These fossil fuels are used extensively for electricity generation, transportation, and industrial processes. Natural gas, on the other hand, is a secondary source of energy as it is often used as a substitute for oil and coal. Therefore, the correct answer is I, II only.Rate this question:
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Mar 18, 2023Quiz Edited by
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Feb 26, 2013Quiz Created by
MBares823
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