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प्रश्न
Define weathering and describe the chief characteristics of weathering.
उत्तर
Weathering is the process of breaking down of rocks but not its removal. It is described as disintegration or decomposition of rock in size by natural agents at or near the surface of the earth.
Chief characteristics of weathering are :
The disintegration of rocks, chemical change in rocks, change in the surface of the land, the formation of soil, several processes involved in weathering like temperature and weather change and reactions, transportation of rock material from one place to another resulting in the formation of large plains like Northern plain of India.
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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.
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.
Match the column
| Column A | Column B |
| 1. Granular disintegration | (i) causes feldspar to become a powdery mass |
| 2. Oxidation | (ii) is common in deserts |
| 3. Carbonation | (iii) is the simplest form of chemical weathering |
| 4. Hydration | (iv) mainly affects limestone regions |
| 5. Solution | (v) results in the rusting of iron |
On what factors does the weathering depend?
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.
How does frost action cause weathering?
Describe the work of plants as agents of weathering.
Give a geographical reason:
Human is an agent of weathering.
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?
