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Question

Which is the main causative factor of desertification

A
Developmental activities
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B
Tourism
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C
Overgrazing
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D
Irrigated agriculture
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Solution

The correct option is C Overgrazing
Overgrazing is an important reason for desertification. Overgrazing denudes the soil of plant cover. Trampling by cattle decreases soil porosity. The exposed hardened soil undergoes erosion by wind and water. Wind erosion is more common, where drought conditions prevail for long periods. It causes desertification or conversion of once fertile land into desert.

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