The moss which forms dense extensive mats on the soil prevents

Options

A. uprooting of trees
B. soil erosion
C. falling of leaves
D. evaporation of water from the soil

Answer

B

Explanation

mosses form a protective covering over the crumbling soil of cliffs and prevent the ruching rainwater from cutting deeply into the soil these grow in dense mats so firmly interwined around the soil particles that there can be little erosion, even on a steep hill side.