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1 vote
Which change is an environmental effect of building dams?

A. decreased water temperature upstream

B. soil erosion upstream

C. weed growth downstream

D. increased land fertility downstream

1 Answer

4 votes

Answer:

B. soil erosion upstream

Step-by-step explanation:

cause the soil (dirt) on the ground upstream to move and wash away.

can make it harder for plants and animals to live there because their homes and food may get taken away.

water can also have too much dirt in it, which

can cause problems for the plants and animals there too.

advantages:

dams CAN generate a lot of electricity very cheaply by having

water pass thru tunnel passages in dams which make the water spin generator wheels which creates electricity

dam in niagara falls in buffalo new york does this otherwise

generators would need fossil fuels or nuclear material to boil water to make to make steam to move generator wheels to make electricity

chatgpt

User Vignesh Jayavel
by
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