What are true for hydroelectric energy?

a. It is clean and renewable
b. The large reservoirs behind the dams of hydroelectric power plants may provide irrigation water
c. The construction of big dams and reservoirs may also damage the ecosystem
d. Reservoirs trap sediment and nutrients and may affect agriculture
e. All of the above


Answer: e. All of the above

Environmental & Atmospheric Sciences

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Answer the following statement true (T) or false (F)

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What will be an ideal response

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A 1000-kg car accelerates at 2 m/s2. What is the net force exerted on it?

A. 2000 N B. 500 N C. 1000 N D. 1500 N

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