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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.
Give geographical reason:
Temperature changes result in physical weathering.
Give geographical reason:
Gases in the atmosphere affect weathering.
Give a technical term for the following:
Peeling off of the outer layer of rock through contraction and expansion.
What do you understand by the following term:|
Humus
Rewrite the following sentence, choosing the right word from the options given below:
_______refers to the gradual disintegration and decomposition of rocks which lie exposed to the elements of weather.
What do you understand by the following term:
Soil texture
State the effects of weathering.
Give a geographical reason:
Human is an agent of weathering.
It is weathering that is responsible for bio-diversity on the earth. How?
