Question

What is meant by Wheathering?Explain different types of Wheathering with examples? ​

Answer 1

Answer:

weathering is the break down of of substances

by agents of gradation

example :

1. wind
2. water
3. sea waves

example of weathering: mushroom rock

Answer 2

Explanation:

weathering is the process of rocks into soil. It is done mainly by yhe action of rainwater, temparature and bilological process.

main 3 types of weathering are

1 Physical

2 chemical

3 biological

physical weathering caused by change in temperature. this is assisted by the action of water.

Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart.

Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion

Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occcur particularly when the water is slightly acidic.

Hydrolysis - the breakdown of rock by acidic water to produce clay and soluble salts.

Oxidation - the breakdown of rock by oxygen and water, often giving iron-rich rocks a rusty-coloured weathered surf

Biological weathering Living organisms contribute to the weathering

Trees put down roots through joints or cracks in the rock in order to find moisture. As the tree grows, the roots gradually prize the rock apart.

Even the tiniest bacteria, algae and lichens produce chemicals that help break down the rock on which they live, so they can get the nutrients they need