Geography, asked by akibpintu000, 1 month ago

explain the role of animals in weathering with suitable examples? pls tell me this one

Answers

Answered by ASIFmujeeb
27

Answer:

When weathering is caused by animals and plants, it is termed as biological weathering.

Explanation:

Plant Weathering: Plant roots at times grow deep into the cracks present in the rocks. As the plants and the roots grow thick and go deep in search of water for survival, the rocks begin to break. Even during cultivation, the rocks are exposed to water and air which are also agents of weathering. The broken rocks due to constant exposure to air and water keep breaking down and decreasing the size of rocks leading to the formation of soil. Rocks have small crevices in which seeds may fall and grow into plants. Roots of the plants are quite strong to split the rock. This process is called as root wedging. Some of the plants and trees also release chemicals that are acidic in nature and cause weathering of soil, rocks, and minerals present around them

Animal Weathering: Animals impact the landscape on a large scale by moving soil, rocks, making dens, digging tunnels, blocking or rivers, changing the course of rivers, etc. A large number of animals burrow holes inside the ground. At times there are a large number of burrowing animals that fill up huge land sections with numerous tunnels. This leads to a collapse of tunnels and the broken rocks and soil gets washed away easily. Animals grazing along eat up a large amount of vegetation and plantation which leads to erosion. Muskrat is an animal known to burrow holes near the banks of rivers and in the process makes the river banks weaker. Cattle grazing around also cause considerable damage and erosion. Plants are pulled away while eating and in the process, a lot of soil also gets loosened which causes erosion.

Answered by ashauthiras
8

Answer:

-Plant roots break into the rocks weathering them

-Animals like earthworms dig into the soil and break the roots

-Animals who live in burrows in the soil break the rocks underneath

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