building power plants that use coal as fuel clearing land for roads and buildings directing fertilizer runoff to ponds replanting trees in deforested areas
I gave my students this multiple choice question: What human action helps maintain a renewable resource?

Only one answer is correct among these 4 choices:
- building power plants that use coal as fuel
- clearing land for roads and buildings
- directing fertilizer runoff to ponds
- replanting trees in deforested areas

Could you tell me which one is correct?

replanting trees in deforested areas