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प्रश्न
Describe the chief characteristics of weathering.
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उत्तर
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Disintegration and Decomposition: Weathering involves the breaking down or decomposition of rocks at or near the Earth’s surface. It may occur through physical processes (mechanical weathering) or chemical processes (chemical weathering).
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In Situ Process: Weathering takes place in the original location of the rock. Unlike erosion, it does not involve the removal of the rock material but only its breakdown or alteration.
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Slow Process: Weathering is a gradual process that occurs over long periods of time. It can take thousands or millions of years for rocks to weather significantly.
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Influence of Climate: Climate plays a crucial role in weathering. For example, chemical weathering is more effective in warm and moist climates, while mechanical weathering is more prevalent in areas with large temperature fluctuations.
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Formation of Soil: Weathering contributes to soil formation as the weathered rock particles become the mineral component of the soil.
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Two Types: Weathering can be of two types: physical (mechanical) weathering, which breaks rocks into smaller pieces, and chemical weathering, which involves the chemical alteration of minerals in the rocks.
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संबंधित प्रश्न
People have used various farming methods to increase food production. However, in the process, they have stripped the soil of nutrients, leading to its degradation.
Can you suggest some ways by which we can reduce soil degradation?
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 |
Distinguish between the following pair:
Weathering and erosion
What do you understand by the following term:|
Carbonation
Define the following term briefly:
Soil texture
What do you understand by the following term:
Soil profile
Describe how changes of temperature lead to weathering.
OR
How do changing temperature lead to weathering?
Give reasons for the following :
A soil dominated by clay makes tilling difficult.
Is weathering essential as a pre-requisite in the formation of soils? Why?
Name three types of weathering.
