Question 27 Unsaved

Why is wind energy controversial?

Question 27 options:

1)

Wind energy is nonrenewable.

2)

Wind energy needs fossil fuels.

3)

Wind energy is expensive.

4)

Wind energy can harm migrating birds.

Nitrogen gas plus hydrogen gas under pressure and at high temperature turns into ammonia. which of the chemical equations matches the reaction above?

Elements in group 2 are all called alkaline earth metals. What is most similar about the alkaline earth metals?

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What can't be changed chemically

True or false: A gene is a form of an allele.

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