What Do You Know About Environmental Science Quiz

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| By Ahleebaybee

Ahleebaybee

Community Contributor

Quizzes Created: 8 | Total Attempts: 2,757

Questions: 6 | Attempts: 799 | Updated: Mar 21, 2023

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What Do You Know About Environmental Science Quiz - Quiz

In your high school studies, you may have touched on elements of the environment in your geography classes, but the science behind those particular studies are far more intensive. In this “What Do You Know About Environmental Science Quiz” we’ll see just how much you know.

Questions and Answers

1.

Most soil erosion is caused by
- A.
  
  Wind and moving water
- B.
  
  Photosynthesis
- C.
  
  Earthquakes
- D.
  
  Volcanoes
- E.
  
  Excess heat
Correct Answer
A. Wind and moving water

Explanation
Soil erosion is the process by which soil is moved from one place to another by the action of external forces. The two main forces responsible for soil erosion are wind and moving water. Wind erosion occurs when strong winds blow over bare soil surfaces, carrying away loose particles. Moving water erosion happens when rainwater or flowing streams wash away soil particles, creating channels and gullies. Both of these forces play a significant role in shaping the Earth's surface and can cause extensive damage to agricultural lands and natural ecosystems.

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1
0
2.

Salt buildup may
- A.
  
  Increase crop growth
- B.
  
  Increase yields
- C.
  
  Eventually kill weeds
- D.
  
  Eventually make the land unproductive
- E.
  
  None of these answers
Correct Answer
D. Eventually make the land unproductive

Explanation
Salt buildup in the soil can have detrimental effects on crop growth and productivity. As salt accumulates in the soil, it increases the salinity levels, making it difficult for plants to absorb water and nutrients. This can lead to stunted growth, reduced yields, and eventually make the land unproductive for agriculture. The excess salt can also affect the germination of seeds and kill beneficial soil organisms. Therefore, the correct answer is that salt buildup eventually makes the land unproductive.

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3.

Which of the following best describes how the process of irrigation can lead to salinization of soils?
- A.
  
  Water associated with irrigation flows uphill. The salts that were in the soil uphill end up being brought to the lower elevations.
- B.
  
  Water associated with irrigation contains small amounts of dissolved salts. Evaporation leaves behind increasing concentrations of these salts.
- C.
  
  Irrigation water is treated with dissolve salts to promote plant growth. Over time the plants become saturated with salts and do not need this macronutrient.
- D.
  
  Irrigation is primarily accomplished through the use of abundant sea watre, which contains high concentrations of salts
Correct Answer
B. Water associated with irrigation contains small amounts of dissolved salts. Evaporation leaves behind increasing concentrations of these salts.

Explanation
The process of irrigation can lead to salinization of soils when water associated with irrigation contains small amounts of dissolved salts. When the water is applied to the soil, some of it is absorbed by the plants and some evaporates. As the water evaporates, it leaves behind the dissolved salts, which become more concentrated in the soil over time. This increase in salt concentration can be harmful to plants and can lead to soil salinization.

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4.

How many units of energy are required to produce one unit of grain-fed beef?
- A.
  
  1
- B.
  
  10
- C.
  
  15
- D.
  
  25
- E.
  
  35
Correct Answer
E. 35

Explanation
The correct answer is 35 because producing one unit of grain-fed beef requires a significant amount of energy. The process involves growing and harvesting the grains to feed the cattle, transporting the grains, raising and caring for the cattle, and processing the meat. All of these steps require energy in the form of fuel, electricity, and resources. Additionally, the production of grain-fed beef has a higher environmental impact compared to other types of meat production, further contributing to the energy requirement.

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5.

Which of the following can lead to desertification?
- A.
  
  Conservation tillage
- B.
  
  Severe and prolonged drought
- C.
  
  Crop rotation
- D.
  
  Polyculture farming
- E.
  
  None of these answers
Correct Answer
B. Severe and prolonged drought

Explanation
Severe and prolonged drought can lead to desertification because it causes a significant decrease in rainfall and water availability, resulting in the drying out of soil and vegetation. Without enough water, plants cannot survive, leading to the degradation of land and the conversion of once fertile areas into deserts. This process is exacerbated by the lack of precipitation over an extended period, making it difficult for the ecosystem to recover and sustain life. Conservation tillage, crop rotation, and polyculture farming, on the other hand, are sustainable agricultural practices that aim to protect soil health and prevent desertification.

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6.

Strains of genetically motified food crops can hybridize with wild crop varieties when
- A.
  
  The process is carefully controlled in an agricultural lab
- B.
  
  Pollen blows from the genetically modified crop and spreads among wild varities
- C.
  
  Pollen is transferred by the farmer from one crop to the other
- D.
  
  It is not possible for a genetically modified plant to hybridize with a wild species
- E.
  
  More than one of these answers is correct
Correct Answer
B. Pollen blows from the genetically modified crop and spreads among wild varities

Explanation
Genetically modified food crops can hybridize with wild crop varieties when pollen from the genetically modified crop is carried by wind and spreads among the wild varieties. This can happen naturally without any human intervention or control. Therefore, the correct answer is "Pollen blows from the genetically modified crop and spreads among wild varieties."

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
May 08, 2012

Quiz Created by
Ahleebaybee

What Do You Know About Environmental Science Quiz

Most soil erosion is caused by

Salt buildup may

Which of the following best describes how the process of irrigation can lead to salinization of soils?

How many units of energy are required to produce one unit of grain-fed beef?

Which of the following can lead to desertification?

Strains of genetically motified food crops can hybridize with wild crop varieties when