recycling aluminum cans cutting down trees in forests mining minerals such as gold conserving freshwater resources
I gave my students this multiple choice question: Which of the following could limit the supply of a renewable resource?

Only one answer is correct among these 4 choices:
- recycling aluminum cans
- cutting down trees in forests
- mining minerals such as gold
- conserving freshwater resources

Could you tell me which one is correct?

cutting down trees in forests