Question

choose the correct answer.
in which case does secondary succession occur?
where soil is present
where only rocks are found
where soil is not present

Explanation:

Secondary succession occurs in areas where a disturbance has destroyed an existing ecosystem but left the soil intact. For example, after a forest fire or a flood that doesn't remove the soil layer. In contrast, primary succession occurs in areas with no soil (like on newly formed volcanic islands or bare rock surfaces).

Answer:

where soil is present