CASC Environmental Unit 3 Review

What makes a resource nonrenewable?

• It cannot be replenished in a reasonable amount of time.

• It is exploited by human beings.

• It is always available in the same amount.

• Some nations have more of it than others.

How can supplies of metals such as copper remain healthy even though there is a dwindling amount in the earth's crust?

• They can be mined.

• They can be recycled.

• They can be manufactured.

• They can be used for a wide range of products.

Which action is not a cause of soil depletion?

• deforestation

• multiple cropping

• erosion

• overtilling

How might poverty affect soil loss?

• Poor people no longer have the desire to farm

• Poverty leads farmers use methods that deplete soil but yield quick crops.

• When soils are poor in nutrients, crop yields are low

• When large-scale deforestation occurs, erosion increases, depleting soil.

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NGSS.MS-ESS3-4

Which product is made from forest timber?

• gum rubber

• paper

• turpentine

• syrup

Which tree harvesting method promotes growth of younger trees by cutting mature trees over a period of 10 years?

• clear cutting

• selective cutting of groups of trees

• selective cutting of individual trees

• shelterwood cutting

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Educating the public is an important aspect of which fire management practice?

• controlled burning

• supressing a fire altogether

• supressing a fire at its early stages

• preventing fires

In the diagram, which process is ocean evaporation?

• A

• B

• C

• D

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NGSS.MS-ESS2-4

What process of desalination uses high pressure and selectively permeable membranes to remove salt from seawater?

• electrodialysis

• distillation

• reverse osmosis

• sedimentation

Which of the following was a function of the wetlands in Florida?

• controlling insects

• minimizing damage from hurricanes

• replenishing the groundwater

• providing high-quality farmland

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NGSS.MS-LS2-4

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