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How does overgrazing promote desertification?

Answer and explanation

Correct answer: It removes vegetation and exposes soil to erosion

The governing process is land degradation caused by the removal of protective vegetation cover. In overgrazed land, animals consume grasses faster than plants can recover, and repeated trampling may compact the soil. Without roots and plant litter to hold and shield the surface, wind and rain remove fertile topsoil more easily. Lower soil fertility and reduced water infiltration then make vegetation recovery still harder, creating a feedback that can promote desertification. Overgrazing does not increase rainfall, water harvesting or soil organic matter as stated. Therefore option A correctly identifies the immediate mechanism and the best answer.

Related tags

OvergrazingDesertificationLand DegradationSoil ErosionForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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