Biotic or natural succession is the natural development of a series of biotic communities at the same site one at for other. Lichen is pioneer in ehich type of siccession

1. hydrosphere
2. lithosphere
3. ionosphere
4. psammosere

Hello Student
Correct Answer is 2. Lithosphere
Th eswquence of successional stages that occur on bare rocks in called lithosphere. In lithosphere the lichen is the pioneer organism.