building houses with wood using natural gas to heat homes using solar energy to power lights producing electricity from flowing water
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Humans use both renewable and nonrenewable resources. Which human activity uses a nonrenewable resource?
Possibilities:
- building houses with wood
- using natural gas to heat homes
- using solar energy to power lights
- producing electricity from flowing water

using natural gas to heat homes