2. Why is wind energy controversial? (Points: 1)
Wind energy needs fossil fuels.
Wind energy is expensive.
Wind energy is nonrenewable.
Wind energy can harm migrating birds.
3. Which of the following describes what can happen to the areas upstream of a hydroelectric dam? (Points: 1)
less water in the river
loss of homes and habitats to lake formation
high electricity costs
increased soil pollution
Wind energy needs fossil fuels.
Wind energy is expensive.
Wind energy is nonrenewable.
Wind energy can harm migrating birds.
3. Which of the following describes what can happen to the areas upstream of a hydroelectric dam? (Points: 1)
less water in the river
loss of homes and habitats to lake formation
high electricity costs
increased soil pollution