Q: Fact: a moth undergoes metamorphosis
Question: Metamorphosis is complete at

A: adulthood

Q: Fact: the slope of the land causes a river to flow in a particular direction
Question: If a river is flowing down the east side of a hill, then the hill

A: drops sharply right there

Q: Fact: electricity causes less pollution than gasoline
Question: Good stewards of the environment would

A: purchase transportation that uses alternate fuel sources

Q: Fact: fossil fuels are a nonrenewable resource
Question: Why should people conserve gas when fueling their cars?

A:
because it can only be used once