Which biomes likely has the thinnest layer of topsoil?

The answer is Desert.  The biomes that likely has the thinnest layer of topsoil is the Desert. The topsoil is a very important layer of soil because on this layer of soil, plants are nourished. The topsoil have to be healthy to grow plants on it. It contains humus, bacteria, fungi, insects and worms. But you can hardly find these in the Desert.

Deseret-type biomes likely has the thinnest layer of topsoil.

The answer would probably be be D

the desert Explanation:

B is the correct answer which is the dessert