Explain the role of mosses and lichens in primary succession?

They begin life in a lifleless habitat.

Explanation:

A primary succession is a phenomenon that leads to the development of flora and fauna in an area that had previously been uninhabited.

Lichens are a combination of fungi and algae that release acids which help in the growth of other organisms like mosses and other tiny organisms.

Lichens and moses act as a catalyst in primary succession. They not only initiate the process but also serve as 'pioneer species'.

As 'pioneer species', they help in transforming the rock into soil, thereby contributing to the vegetation of grass and other plants.

the answer would be 3