When humans clear the trees and other plants from the soil, what is likely to happen to the top soil?

Question

When humans clear the trees and other plants from the soil, what is likely to happen to the top soil?

It is washed into the sea

It is left on the land for new plants to grow

It is moved to another location by human

Answer 1

The populace of microbial life which feed on the secretions from root systems dies, thus the cycling of organic materials stops and the soil layer is not built.

Answer 2

it will be washed away cuz there is nothing to hold it