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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
People have used various farming methods to increase food production. However, in the process, they have stripped the soil of nutrients, leading to its degradation.
Can you suggest some ways by which we can reduce soil degradation?
Give geographical reason:
Gases in the atmosphere affect weathering.
List any three factors that affect weathering.
In which regions of the world is ‘frost action’ the common form of weathering?
What is gradation? Describe the two processes involved in gradation.
How are erosional plains formed?
Name any two slow movements of mass wasting.
Say whether the following is ‘True’ or ‘False’.
External forces are engaged only in erosion
State and explain the classification of mass movements.
Distinguish between:
Weathering and Denudation
Distinguish between :
Loess and Alluvium.
On what factors does the weathering depend?
How is humus formed?
What is a badland topography?
What do you understand by the following term:|
Desilication
What are different types of soil according to their texture?
Rewrite the following sentence, choosing the right word from the options given below:
_______is produced by the decayed organic material, including dead leaves, stems roots, living bacteria, fungi, worms, and other organisms.
Define the following term briefly:
Soil texture
What are the various factors governing the formation of soil? Which one is the most important and why?
What do you understand by the following term:
Weathering
Account for the two types of weathering.
How does frost action cause weathering?
Give reasons for the following :
Climate is the most important factor of soil formation.
Give reasons for the following :
Grassland soils are less acidic than forest soils.
Explain the following terms.
Colloids
Give a geographical reason:
Temperature is the main factor behind granular weathering.
Which one of the following materials is affected by hydration process?
Are physical and chemical weathering processes independent of each other? If not, why? Explain with examples.
