AP Environmental Science : Dams

Study concepts, example questions & explanations for AP Environmental Science

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Example Questions

Example Question #1 : Dams

All of the following are potential benefits to dams EXCEPT __________.

Possible Answers:

Sedimentation buildup

Flood control

Water level management

Recreation opportunities from the resulting lake

Clean electricity generation

Correct answer:

Sedimentation buildup

Explanation:

Dams can be huge boons to local economies, and are a landmark of human engineering and achievement; however, they do carry serious consequences to the natural environment. They lead to sediment buildup, which hurts the flow of nutrients downstream, ruins the natural riverscape, and can cause the area behind the dam to become more shallow.

Example Question #2 : Dams

All of the following are drawbacks to dams EXCEPT __________.

Possible Answers:

Increased air pollution

Habitat alteration

Interruption of migration patterns among fish

Destruction of surrounding farmland

Local inhabitants may be forced to move

Correct answer:

Increased air pollution

Explanation:

Dams carry numerous drawbacks, but one benefit of dams that they do not increase air pollution. Hydroelectric power is considered to be one of the cleanest forms of energy.

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