Assertion: Mosses are of great ecological importance.
Reason: Mosses prevent soil erosion by forming dense mat on the soil

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. if both assertion and reason are true but reason is not the correct explanation of assertion
C. if assertion is true but reason is false.
D. if both assertion and reason are false.

Answer

B

Explanation

Mosses along with lichens are the first orgainsms to colonis rocks and hence, are of great ecological importance. They decompose recks making the substance suitable for the growth of higher plants. Since mosses form dense mats ont the soil, they reduce the impact of falling rain and prevent soil erosion.