Question

How did the appearance of the smallest creatures, such as the microbes and bacteria, in Earth's early history impact the geosphere?

A)
formation of rocks


B)
enriching the soil


C)
decreased moisture


D)
caused land erosion

Answer 1

I believe the answer is B) enriching the soil. Bacteria converts energy in would organic matter into forms useful to the rest of the organization in the soil food web.

Answer 2

B) Enriching the soil.

Hope this helps.