Aydenthecat
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100 POINTS)Which change is an environmental effect of building dams?
A) increased fertility downstream
B) weed growth upstream
C) sediment builds up downstream
D) increased water temperature upstream

Respuesta :

Answer:

weed growth upstream

Explanation:

When dams are build up on a river the water at upstream rises .

Buliding dams also have some other side effects like dieing of fishes ,quick floods etc .

Option B

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