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प्रश्न
What is gradation? Describe the two processes involved in gradation.
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उत्तर
Gradation is the process of levelling the land by means of moving agents like rivers, or wearing away and lowlands are raised by adding the eroded material by the process of deposition. This is because there is constant earth movement which raises mountains and winds, seas and waves. The highlands are made low by erosion and this process is called degradation and materials are deposited elsewhere in depressions like valleys, lakes, etc. and these lowlands are raised by the process called aggradation.
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संबंधित प्रश्न
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 |
Give geographical reason:
Temperature changes result in physical weathering.
Give geographical reason:
Gases in the atmosphere affect weathering.
What is known as Sheet Wash?
What is weathering?
What do you understand by the following term:|
Exfoliation
What do you understand by the following term:|
Carbonation
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.
Distinguish between the following :
Erosion and Weathering.
How does frost action cause weathering?
