Question

Give causes and effect of soil erosion.

Answer 1

Soil erosion is a naturally occurring process that affects all landforms. In agriculture, soil erosion refers to the wearing away of a field's topsoil by the natural physical forces of water and wind or through forces associated with farming activities such as tillage.
Poor soil quality means smaller crop yields and may even wash away seeds and small plants.
The top soil has a good amount of nutrients. so if it is washed away. The plants can't get good nutrients.

Answer 2

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Soil Erosion➫ The removal of top layer of the soil by the action of wind & rainfall is called soil erosion.

♦ This is a naturally occurring process that affects all landforms.

❱ This natural process is caused by the dynamic activity of erosive agents like:-

♦ Water
♦ Ice
♦ Snow
♦ Air
♦ Plants
♦ Animals
♦ Humans

➧ Types of Erosion are:-
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[1] Splash Erosion:-

❱ The first stage in the Erosion process.
Splash Erosion results from the bombardment of the soil surface by rain drops.

[2] Sheet Erosion:-

❱ The uniform removal of soil in thin layers by the forces of raindrops & overland flow.

[3] Rill Erosion:-

❱ The removal of soil by concentrated water running through little streamlet.

[4] Gully Erosion:-

❱ The removal of soil along drainage lines by surface water runoff.

➧ Causes 0f Soil Erosion are:-
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❱ Water

❱ Winds

❱ Glacier

❱ 0ver Grazing

❱ Human Activities

➧ Factors that cause Soil Erosion are:-
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❱ Rainfall

❱ Topography

❱ 0vergrazing

❱ Deforestation

❱ Human Activities

❱ Presence of 0rganic Materials in Soil

➧ Measures to Prevent Soil Erosion are:-
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❱ Strip Farming

❱ Soil Rotation

❱ Soil Stabilisation

❱ Terrace Farming

❱ Vegetation Cover

❱ Controlled 0ver-Grazing

➧ Effects 0f Soil Erosion are:-
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❱ Landslides

❱ Flash Floods

❱ Desertification

❱ Loss of soil fertility

❱ Silting of Rivers & Lakes

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