Question

distinguish between the following physical and chemical weathering

Answer 1

Physical weathering is also known as mechanical weathering.It involves rock disintegration without any change in the chemical costituents of the rock.Main factors responsible for physical weathering are temperature changes,moisture,wind etc.

In chemical weathering,some or all the minerals in the rocks suffer decay or alternation by such agents as water,oxygen,carbon etc.It leads to decomposition of rocks and minerals as chemical reaction transform them into different chemical combinations.

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Answer 2

the weathering which caused by itself without any chemical is called physical weathering and the weathering which are caused by pollution nitrogen mixture of dust particles this is called chemical weathering

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