Which of the following describes the importance of decomposition of organic matter in the soil formation process?
a. It creates the sand, silt, and clay that make up the type of soil necessary for raising crops.
b. It creates an upper layer of topsoil that carries important nutrients for plant health and growth.
c. It creates pathways that allow air and water to get to the roots to help plants grow.
d. It creates a healthy environment for the survival of earthworms that live in sandy soils.
e. It creates the minerals in volcanic soils of the Andes Mountains for growing maize and yams.