topsoil is near the roots of trees and subsoil is underneath the roots of trees
see link below for info
Yes topsoil has more fertility and humus than subsoil.
topsoil
topsoil
They are both made with the same substance but the topsoil has newer soil than the subsoil.
Topsoil has higher fertility compared to subsoil. Topsoil contains most of the organic matter, nutrients, and microbial activity that support plant growth, while subsoil typically has lower organic matter content and nutrient availability.
Topsoil, subsoil, C horizon, bedrock
Topsoil has more organic material.
subsoil
The soil beneath the topsoil.
subsoil
top soil is sand nd subsoil are rocks mix with sand