Ch- Soil
Class 7 questions
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Soil erosion- It is a process in which the upper layer of soil is carried away from one place to another by many natural sources. For example- rain, wind, flood etc.
Soil Pollution- It is a process in which the soil gets damaged or polluted due to reasons like presence of toxic chemicals, throwing waste products etc.
Soil Conservation- In this process the soil is protected from getting eroded by practicing different techniques like crop rotation, aforestation etc.
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