Biology

The correct order of succession based on the descriptions provided is:

C, D, A, B

Explanation:

C: After a volcanic eruption, the land is barren (no soil, minimal life), and the pioneer species begin to colonize (like lichens and mosses). This is the initial stage.

D: As pioneer species start to grow, they break down the rock, creating a small layer of soil. At this point, herbaceous plants (grasses and small flowe...