Question

which of the following could reset the process of secondary succession? clearcutting or plowing by humans excess rainfall an increase in invasive species

Explanation:

Secondary succession occurs in areas where a disturbance has destroyed an existing ecosystem but left the soil intact. Clearcutting or plowing by humans can remove the existing vegetation and reset the succession process. Excess rainfall typically does not reset secondary succession as it doesn't usually remove the soil or all vegetation in a way that restarts the succession from a more "initial" state. An increase in invasive species may disrupt the ecosystem but doesn't reset the succession process like a more drastic removal of the existing plant community (as in clearcutting or plowing).

Answer:

clearcutting or plowing by humans