building houses with wood using natural gas to heat homes using solar energy to power lights producing electricity from flowing water
I gave my students this multiple choice question: Humans use both renewable and nonrenewable resources. Which human activity uses a nonrenewable resource?

Only one answer is correct among these 4 choices:
- building houses with wood
- using natural gas to heat homes
- using solar energy to power lights
- producing electricity from flowing water

Could you tell me which one is correct?

using natural gas to heat homes