Question

how does parent material influence soil formation?
a. it provides the initial material from which soil is formed
b. it reduces the organic matter content
c. it changes soil color
d. it increases soil acidity

what is the process of weathering in soil formation?
a. the mixing of organic matter with minerals
b. the breakdown of rocks into smaller particles

Explanation:

Answer:

a. It provides the initial material from which soil is formed
b. The breakdown of rocks into smaller particles