0 votes
611 views
in Geography Form 3 by
Describe two causes of biological weathering.

1 Answer

0 votes
by
  1. Action by plants
    • Roots of plants penetrate grow into joints or cracks.
    • As the trees grow bigger, the root also grow bigger widening the joints and cracks.
    • Blocks separate in what is called wedging mechanism. 
  2. Action of animals
    • Burrowing animals such as moley rabbits, Earth worms break off small bits of rocks from the main rock.
    • By digging these animals expose a large surface area to other weathered processes.
    • Large herds of cattle and Zebras’ bound the rock with there hooves as they move breaking them into smaller particles. 
Welcome to EasyElimu Questions and Answers, where you can ask questions and receive answers from other members of the community.

6.4k questions

9.6k answers

6 comments

590 users

...