Distinguish between physical and chemical weathering
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Distinguish between physical and chemical weathering
Distinguish between physical and chemical weathering
Physical Weathering :
1. Rock disintegration without any change in chemical constituents of rocks takes place.
2. Factors such as temperature, moisture, pressure cause physical break-up of rocks.
3. It takes place in hot dry and cold areas due to rapid temperature changes.
4. Rocks are affected to great depths. 5. Its agents are temp erature and moisture.
Chemical Weathering :
1. Mineral in rocks are dissolved or altered.
2. Temperature, moisture, etc., cause minerals in rocks to dissolve in water or convert them into other minerals.
3. It takes place in hot and humid areas due to chemical action of minerals in rocks.
4. It mostly takes place near the surface of the earth.
5. Its agents are solution, oxidation, carbonation and hydration.