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प्रश्न
Give a geographical reason:
Oxidation changes the size and colour of the rocks.
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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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संबंधित प्रश्न
Write whether the statement are true or false. Correct the incorrect one.
The breaking down of rocks into smaller particles is called weathering.
From encyclopedias and the Internet, find out the different types of soil found in India. Discuss the importance of these soils for crops cultivated in our country. You should form groups in class for this activity.
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Granular disintegration and exfoliation
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Loess and Alluvium.
What do you understand by the following term:|
Exfoliation
What are different types of soil according to their texture?
Distinguish between the following :
Erosion and Weathering.
Describe the work of plants as agents of weathering.
