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प्रश्न
Is weathering essential as a pre-requisite in the formation of soils? Why?
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उत्तर
Yes, weathering is an essential pre-requisite in the formation of soils. Weathering is action of elements of weather and climate over earth materials. There are a number of processes within weathering which act either individually or together to affect the earth materials in order to reduce them to fragmental state. Weathering is mechanical disintegration and chemical decomposition of rocks through the actions of various elements of weather and climate.
Weathering is an important process in the formation of soils. When rocks undergo weathering, rocks start to break up and take form of soil gradually.
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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.
Complete the flowchart below.
Give geographical reason:
Temperature changes result in physical weathering.
Give geographical reason:
Gases in the atmosphere affect weathering.
What is gradation? Describe the two processes involved in gradation.
What is known as exfoliation?
What is the chief characteristic of weathering in tropical climates?
Name any two slow movements of mass wasting.
How is humus formed?
What is a badland topography?
Distinguish between the following:
Sheet erosion and gully erosion.
What do you understand by the following term:|
Exfoliation
What do you understand by the following term:|
Carbonation
What do you understand by the following term:|
Desilication
What are different types of soil according to their texture?
How are the different kinds of soils in Temperate zones formed?
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.
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 profile
What do you understand by the following term:
Landslide
Account for the two types of weathering.
Give reasons for the following :
A soil dominated by clay makes tilling difficult.
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.
It is weathering that is responsible for bio-diversity on the earth. How?
Are physical and chemical weathering processes independent of each other? If not, why? Explain with examples.
Name three types of weathering.
