Geography
Assertion (A): Weathering is described as disintegration or decomposition of a rock in size by natural agents at or near the surface of the earth.
Reason (R): A rock undergoes disintegration or decomposition only by being exposed.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Weathering
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Answer
Both A and R are true and R is the correct explanation of A.
Explanation — Weathering is described as disintegration or decomposition of a rock in size by natural agents at or near the surface of the earth. The disintegration or decomposition of rocks take place only by being exposed to changes in weather conditions like temperature, moisture, precipitation that disintegrate or break down the rocks.
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Related Questions
Tension and splitting of rocks is known as ……………. .
- Hydration
- Weathering
- Block Disintegration
- Solution
In which of the following climates physical weathering due to frost action is more prevalent?
- Equatorial climates
- Polar climates
- Tropical climates
- Temperate climates
Given below are different climate types with the predominant weathering action. Select which one is incorrect.
(A) Equatorial Climate — Chemical weathering
(B) Tropical Climate — Chemical weathering
(C) Dry Climate — Biological weathering
(D) Temperate Climate — Mechanical weathering
(E) Polar Climate — Mechanical weathering- B
- C
- D
- E
Melting of ice in polar regions has increased which type of weathering?
- Mechanical
- Chemical
- Biological
- All of them