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प्रश्न
Distinguish between the following:
Sheet erosion and gully erosion.
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उत्तर १
Sheet Erosion :
- Sheet Erosion causes washing out the upper layer of soil and vegetation cover due to heavy rainfall or floods.
Gully Erosion :
- Through gully erosion deep cuts, cracks and trenches are carved in the soil-bed, These tend to be deeper channels known as ‘gullies’.
उत्तर २
Sheet Erosion: When the vegetation cover of an area is removed, the rain, instead of sinking into the ground, washes the soil downslope. Each succeeding rain-storm washes away a thin layer of absorbed top soil. This is known as Sheet Erosion.
Gully Erosion: When rain falls more heavily, the flow off stormwater finds its way downhill in a series of channels.
Every fresh down pour widens and deepens the channels which develop into gullies. Gullies cut up agricultural land into small fragments and make them finally unfit for cultivation. This type of erosion is known as Gully Erosion.
संबंधित प्रश्न
Which is the most important effect of weathering?
What is gradation? Describe the two processes involved in gradation.
What is the chief characteristic of weathering in tropical climates?
What is a badland topography?
What are the various factors governing the formation of soil? Which one is the most important and why?
Give reasons for the following :
Climate is the most important factor of soil formation.
Give reasons for the following :
Grassland soils are less acidic than forest soils.
On the basis of the given points, differentiate between weathering and erosion.
| Weathering | Erosion | |
| Definition | ||
| Causes/Agents | ||
| Effect/Results | ||
| Examples |
Consider the given statement and choose the right option given below.
- The nature and magnitude of weathering differ from place to place and region to region.
- Granular disintegration takes place due to the action of volcanoes.
- Weathering is a prerequisite in the formation of soil.
Which of the above statement is/are the right statement.
It is weathering that is responsible for bio-diversity on the earth. How?
