Biological Weathering
Biological weathering is when plants and animals wear away the rocks and minerals. Animals such as a rabbits can dig into a crack in a rock, making it larger and breaking the rock into pieces. Plant roots can grow in the cracks of rocks, minerals and concrete. As they grow bigger, the roots push open the cracks, making them wider and deeper; eventually, pieces of the rock or mineral fall away. To the left is an example of plant biological weathering and to the bottom is an example of animal biological weathering.
|