Plants and Animals can cause Biological weathering. Animals and plants can wear away rocks, for example a rabbit could make a hole in a rock, each time making the rock expand and eventually splitting the rock. You will find biological weathering often plants digging in rocks. Some examples of when plants dig into rocks is on a pavement, and you witness roots growing through the cracks of the pavement.
(Picture to the right)
Here is an example of Biological weathering. Biological weathering mainly occurs when plants or animals wear away rocks. In this picture, you can see parts of the tree trunk is spreading out and weaving through cracks in the building. |