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प्रश्न
Give a geographical reason:
Oxidation changes the size and colour of the rocks.
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.
How are erosional plains formed?
Name any two slow movements of mass wasting.
Give one example of rapid mass movement.
Give a technical term for the following:
Disintegration or decomposition of rock.
Give a technical term for the following:
Peeling off of the outer layer of rock through contraction and expansion.
What is humus? How is it formed? What is its significance in soil formation?
What do you understand by the following term:|
Oxidation
Give reasons for the following :
Grassland soils are less acidic than forest soils.
Is weathering essential as a pre-requisite in the formation of soils? Why?
