Question

Following are a few organisms.

(a) Lichen (b) Mosses (c) Mango tree (d) cactus

Which among the above can grow on stones; and also help in the formation of soil? Write the mode of their action for making soil.

Answer 1

1. Lichens are the association of algae and fungi and they can grow on barren land and rocks and break them to convert them into the soil.
2. Mango trees and cacti have long roots which break the rocks and convert them into the soil.
3. Mosses can also grow on the rocks and can break the rocks into small particles.