wind, oil, coal fish, coal, wind oil, water, trees trees, water, fish
I gave my students this multiple choice question: Maryland has many renewable and nonrenewable natural resources. Which group contains only renewable resources found in Maryland?

Only one answer is correct among these 4 choices:
- wind, oil, coal
- fish, coal, wind
- oil, water, trees
- trees, water, fish

Could you tell me which one is correct?

trees, water, fish