Question

Assertion (A): Mosses and lichens are said to form the pioneer community in xerarch succession.

Reason (R): It is because during the course of succession these species get established later.

Options

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Assertion (A) is true but reason (R) is false.

Explanation:

In xerarch succession, lichens and mosses are the early pioneer species that first colonise bare rock. The reason is false because these species get established first, not later.