Question

State four ways in which biological agents may enhance soil formation.

Answer 1

1. burrowing animals eg mules dig out the soil causing mechanical break up of small rock fragments from the main rock.
2. decomposition of organic matter brought about by micro-organisms.
3. root penetration into cracks in a rock causes its diantegration.
4. large animals trample over surfaces of rocks with their hooves breaking away small rocks particles