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प्रश्न
State and explain the classification of mass movements.
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उत्तर
Mass movements are divided into slow and rapid movements. Slow movement includes Creep, movement of soil and debris and Solifluction or clay formation Rapid movement includes landslide, Earth Flow or a heavy thick paste of soil down the slope, Mud Flow in the areas without vegetation cover and Sheet Wash in the form of large sheet flow snatching thick rock strata uncovering the rocks below. It may also take place by human activities of settlement.
A mass movement has built many remarkable landforms as Himalayan lakes, Terraces, escarpment, etc
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 |
Distinguish between the following pair
Granular disintegration and exfoliation
Say whether the following is ‘True’ or ‘False’.
In dry climates mechanical weathering is dominant.
What do you understand by the following term:|
Exfoliation
How are the different kinds of soils in Temperate zones formed?
What are the various factors governing the formation of soil? Which one is the most important and why?
Give a geographical reason:
Temperature is the main factor behind granular weathering.
Give a geographical reason:
Oxidation changes the size and colour of the rocks.
Give a geographical reason:
Effect of mass movement will be greater along the western slope of the Sahyadri's than the eastern slope.
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?
