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प्रश्न
It is weathering that is responsible for bio-diversity on the earth. How?
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उत्तर
Weathering processes lead to breaking down the rocks into smaller fragments and preparing the way for formation of not only regolith and soils, but also erosion and mass movements. Bio-diversity is basically a result of forests and vegetation. Forests and vegetation depend upon the depth of weathering mantles. Erosion cannot be significant if the rocks are not weathered. It implies that weathering aids mass wasting, erosion and reduction of relief and changes in landforms are a consequence of erosion.
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संबंधित प्रश्न
Complete the flowchart below.
Soil formation is an important benefit of weathering. How is it important for mankind?
Give geographical reason:
Temperature changes result in physical weathering.
How are erosional plains formed?
Distinguish between the Structural plain and Depositional plains.
What is the chief characteristic of weathering in tropical climates?
Give a technical term for the following:
Peeling off of the outer layer of rock through contraction and expansion.
Give a technical term for the following:
Expansion of minerals in rocks on coming into contact with rainwater.
Say whether the following is ‘True’ or ‘False’.
Shear plane is the surface on which movement of a landslide takes place as a result of its breaking off.
Define weathering.
Describe the chief characteristics of weathering.
State and explain the classification of mass movements.
What is weathering?
What is weathering? Illustrate the process graphically.
Distinguish between :
Loess and Alluvium.
What do you understand by the following term:|
Exfoliation
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.
Define the following term briefly:
Soil texture
Distinguish between the following :
Erosion and Weathering.
How does frost action cause weathering?
State the effects of weathering.
Give a geographical reason:
Oxidation changes the size and colour of the rocks.
On the basis of the given points, differentiate between weathering and erosion.
| Weathering | Erosion | |
| Definition | ||
| Causes/Agents | ||
| Effect/Results | ||
| Examples |
Consider the given statement and choose the right option given below.
- The nature and magnitude of weathering differ from place to place and region to region.
- Granular disintegration takes place due to the action of volcanoes.
- Weathering is a prerequisite in the formation of soil.
Which of the above statement is/are the right statement.
Are physical and chemical weathering processes independent of each other? If not, why? Explain with examples.
