geography presentation on types of weathering

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In this slide show I will tell you about Types of Weathering.

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Post on 18-Jul-2015

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In this slide show I will

tell you about Types of

Weathering.

There are three types of

weathering Physical, Chemical &

Biological weathering.

In this type of weathering the rocks are broken

down through a physical process. It’s also

called mechanical weathering. In this

weathering although the size, shape of rocks

are changed but the chemical compositions

remains the same.

The second type of weathering is chemical

weathering . Chemical weathering refers to

the process in which rocks are broken

down through decompositions when

minerals in the rocks change chemically to

form new materials. The size, shape

changes but chemical compositions are

also changed.

The third and last type of weathering is called

Biological weathering. Biological weathering

refers to the process in which rocks are

break down through the actions of plants and

animals. They slowly break down by

decompositions. Animals and plants help to

break down rocks.

In this slide show I have take the information from book and pictures from internet.