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Question
Describe how changes of temperature lead to weathering.
OR
How do changing temperature lead to weathering?
Solution
The alternate action of heat and cold helps in the weathering of rocks. For example, during the day, the rocks expand by heat and they contract due to cold during the night. It tends to loosen the particles of rock and it begins to disintegrate because every rock is composed of different minerals, which are affected differently due to changes in temperature, and therefore the component parts of the rock begin to lose cohesion.
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RELATED QUESTIONS
Match the column
| Column A | Column B |
| 1. Granular disintegration | (i) causes feldspar to become a powdery mass |
| 2. Oxidation | (ii) is common in deserts |
| 3. Carbonation | (iii) is the simplest form of chemical weathering |
| 4. Hydration | (iv) mainly affects limestone regions |
| 5. Solution | (v) results in the rusting of iron |
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Erosion and Weathering.
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Soil profile
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Explain the following terms.
Bases
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Temperature is the main factor behind granular weathering.
It is weathering that is responsible for bio-diversity on the earth. How?
