Tillage protects the soil from what problem?
A. Pollution
B. Graywater
Precipitation
D. Erosion

The correct option is D) Erosion

Explanation:

Old tillage methods, such as moldboard plowing, cause the soil particles to loosen. This methods protects the surface of the soil and it allows water to infiltrate instead of erosion.

Tillage allows the soil to overcome or replace the lost organic matter, it also increases the capacity of the soil to hold nitrogen and other nutrients. Hence, decreasing the chances of soil erosion.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

i think the answer is b.