its the point at which water and sky meets
it's the top layer of the soil also known as the top soil. It consists of humus and other organic matter.
a horizon
Horizon B
O horizon A horizon E horizon B horizon and c horizon
the horizon that contains topsoil is the A HORIZON
A horizon B horizon C horizon O horizon
A. The A horizon.
on
horizon A , horizon B and horizon C
the answer is horizon
the horizon that contains topsoil is the A HORIZON
The C horizon contains mainly parent material, while the B horizon contains mainly clay particles and the A horizon; mainly silt sized particles and humus
horizon