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Which of the following is a problem caused by dams?

O A. They can be used to generate electricity.
B. They provide water for the irrigation of crops.
.
O C. They impede fish migration and spawning.
O D. They collect and store water for human use.

User Leotsarev
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2 Answers

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They impede on fish migration and spawning (it’s the only negative answer and the question is looking for a problem, not a benefit)
User SudarakaR
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C. because the dam blocks fish from traveling ahead of the dam
User Alex Metelkin
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