Question

What is the name given to the group of weathering processes associated with the action of organism _____________.

• A. Physical weathering
• B. Mechanical weathering
• C. Biological weathering
• D. Chemical weathering

Answer 1

Answer: (C)

Biological weathering

Biological weathering refers to decomposition and disintegration of rocks due to organic material of both flora and fauna. Production of different kinds of organic acids such as humic acids, baterial acids, microfaunal acids etc produced by organic materials help in the decomposition and disintegration of rocks and soils.