It decreases soil erosion. It increases soil removal. It increases fertilizer use. It decreases crop yield.
I gave my students this multiple choice question: How does no-till farming help the environment?

Only one answer is correct among these 4 choices:
- It decreases soil erosion.
- It increases soil removal.
- It increases fertilizer use.
- It decreases crop yield.

Could you tell me which one is correct?

It decreases soil erosion.