Advertisements
Advertisements
प्रश्न
Is weathering essential as a pre-requisite in the formation of soils? Why?
Advertisements
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.
APPEARS IN
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.
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.
Make a chart for your classroom showing the causes of different types of weathering.
Distinguish between the Structural plain and Depositional plains.
Give one example of rapid mass movement.
Give a technical term for the following:
Disintegration or decomposition of rock.
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’.
In dry climates mechanical weathering is dominant.
Say whether the following is ‘True’ or ‘False’.
External forces are engaged only in erosion
Define weathering.
What is weathering?
What is weathering? Illustrate the process graphically.
Distinguish between:
Weathering and Denudation
How is humus formed?
What do you understand by the following term:|
Humus
Distinguish between the following :
Erosion and Weathering.
Account for the two types of weathering.
Describe how changes of temperature lead to weathering.
OR
How do changing temperature lead to weathering?
Give reasons for the following :
Farmers are encouraged to adopt soil conservation methods.
Explain the following terms.
Colloids
Explain the following terms.
Bases
Give a geographical reason:
Oxidation changes the size and colour of the rocks.
A region is having an annual mean temperature of 5°C and an annual rainfall of 1000 mm. Can you comment upon the weathering and the type with the help of the following questions? Discuss in class.
- Which type of weathering will be dominant here?
- Where will such a region be found?
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.
