The soil nutrients are depleted. The soil fertility increases. The soil becomes more porous. The soil erodes less rapidly.
I gave my students this multiple choice question: What most likely happens to soil when crops are not rotated from year to year?

Only one answer is correct among these 4 choices:
- The soil nutrients are depleted.
- The soil fertility increases.
- The soil becomes more porous.
- The soil erodes less rapidly.

Could you tell me which one is correct?

The soil nutrients are depleted.