A student makes a list of all the soil layers in a temperature region. Which layer would be located farthest from the surface of the Earth?
A. Topsoil(A)
B. Organic layer(O)
C. Parent material(C)
D. Bedrock(R)
A. Topsoil(A)
B. Organic layer(O)
C. Parent material(C)
D. Bedrock(R)