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प्रश्न
Distinguish between :
Physical Weathering and Chemical Weathering.
उत्तर
Physical weathering: It is also called Mechanical weathering. It includes the breaking up of rocks without changing their composition. It means the disintegration of rocks by mechanical means. This type of weathering results from the action of temperature changes, frost, wind, and rainfall. It is important in dry areas.
Chemical weathering: The decomposition of rocks by chemical processes is called chemical weathering. This type of weathering produces a chemical change in minerals of rocks. It results from the action of weak acids and atmospheric gases like oxygen, carbon dioxide, hydrogen. It involves the process of oxidation, carbonation, solution and hydration. It is important in hot humid areas.
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संबंधित प्रश्न
Identify the type of weathering from the given description.
The rock rusts.
What do you understand by controlled grazing ?
Name few well known physical features caused by chemical weathering.
Distinguish between the following:
Mechanical Weathering’ and ‘Chemical Weathering’.
Distinguish between the following :
Solution and Hydration
Give reasons for the following :
Presence of water aids chemical weathering.
Mention the agents of chemical weathering.
Statement: The Agents of chemical weathering are Oxygen, Carbon dioxide, and Hydrogen.
Reason: Chemical weathering is predominantly high in the hot and humid regions.
The process of dissolution of rock substances in water is ______.
This ______ generally originate from mountains.
