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Question
Distinguish between :
Physical Weathering and Chemical Weathering.
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Solution
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.
RELATED QUESTIONS
Identify the type of weathering from the given description.
The rock rusts.
How do animals and plants assist in weathering?
Give two differences between physical and chemical weathering.
Name the four processes involved in chemical weathering.
Distinguish between the following:
Mechanical Weathering’ and ‘Chemical Weathering’.
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Hydration comes under ______.
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Statement: The Agents of chemical weathering are Oxygen, Carbon dioxide, and Hydrogen.
Reason: Chemical weathering is predominantly high in the hot and humid regions.
This ______ generally originate from mountains.
