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प्रश्न
Is weathering essential as a pre-requisite in the formation of soils? Why?
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
From encyclopedias and the Internet, find out the different types of soil found in India. Discuss the importance of these soils for crops cultivated in our country. You should form groups in class for this activity.
Soil formation is an important benefit of weathering. How is it important for mankind?
Distinguish between the following pair:
Weathering and erosion
Give geographical reason:
Gases in the atmosphere affect weathering.
Which is the most important effect of weathering?
Make a chart for your classroom showing the causes of different types of weathering.
How are erosional plains formed?
Distinguish between each of the following: Structural plain and Depositional plains.
What is known as exfoliation? Name the processes involved in it?
What are exogenic forces?
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.
Say whether the following is ‘True’ or ‘False’.
In dry climates mechanical weathering is dominant.
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.
Say whether the following is ‘True’ or ‘False’.
External forces are engaged only in erosion
Describe the chief characteristics of weathering in different climates.
Distinguish between :
Loess and Alluvium.
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:
Weathering
What do you understand by the following term:
Soil profile
Account for the two types of weathering.
How does frost action cause weathering?
Describe the work of plants as agents of weathering.
Explain the following terms.
Bases
Give a geographical reason:
Slope is a major factor in mass wasting.
Give a geographical reason:
Effect of mass movement will be greater along the western slope of the Sahyadri's than the eastern slope.
Consider the given statement and choose the right option given below.
- Small streams that join the main river is tributary.
- River Gangas is a tributary.
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.
