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प्रश्न
Distinguish between the following :
Erosion and Weathering.
उत्तर
Erosion :
- Erosion includes the work of weathering away of rocks of the earth.
- It involves motion.
- River, glacier, wind are its main agents.
Weathering :
- Weathering is the breaking of rocks by elements of the atmosphere.
- It involves no motion.
- Temperature, frost, wind, plants and animals are its main agents.
APPEARS IN
संबंधित प्रश्न
Complete the flowchart below.
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.
Give geographical reason:
Gases in the atmosphere affect weathering.
What is known as mass wasting?
How are the different kinds of soils in Temperate zones formed?
Match the following pairs correctly:
| A | B |
| (a) A soil formed at a place or a particular site | Alluvium |
| (b) Over a long period of time this soil become mature | Transported soil |
| (c) It is most fertile soil when renewed every year | Podzol |
| (d) This soil is found is cool or cold humid areas | Residual |
Give reasons for the following :
A soil dominated by clay makes tilling difficult.
Explain the following terms.
Colloids
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?
