Question

this image shows lichens and mosses on a rock. which type of succession is taking place here? primary tertiary eutrophic

Explanation:

Primary succession occurs in areas with no pre - existing soil, like on bare rock. Lichens and mosses are pioneer species that colonize such areas first, breaking down the rock to form soil over time. Tertiary succession is not a standard ecological term in this context, and eutrophication refers to the enrichment of water bodies with nutrients, not succession on rocks.

Answer:

primary