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प्रश्न
Give a geographical reason:
Oxidation changes the size and colour of the rocks.
टीपा लिहा
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उत्तर
Oxidation changes the size and colour of the rocks because -
- Oxygen in the air and water reacts with certain elements in the minerals inside the rock.
- In this process, the minerals in the rock react with the oxygen present in the air or water.
- Metals, particularly iron and aluminium, commonly oxidize forming iron or aluminium oxides. It is also called rusting.
- These oxides are larger in volume than in the original rocks.
- The iron oxides are red in colour and aluminium oxides are yellow.
- Thus, oxidation changes the size and colour of the rock.
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Weathering
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संबंधित प्रश्न
Soil formation is an important benefit of weathering. How is it important for mankind?
In which regions of the world is ‘frost action’ the common form of weathering?
What is known as exfoliation?
Distinguish between the following:
Sheet erosion and gully erosion.
What do you understand by the following term:|
Oxidation
Match the following pairs correctly:
| A | B |
| (a) A soil formed at a place or a particular site | Alluvium |
| (b) Over a long period of time this soil become mature | Transported soil |
| (c) It is most fertile soil when renewed every year | Podzol |
| (d) This soil is found is cool or cold humid areas | Residual |
Distinguish between the following :
Erosion and Weathering.
Describe the work of plants as agents of weathering.
Explain the following terms.
Bases
Are physical and chemical weathering processes independent of each other? If not, why? Explain with examples.
