Choose if the given statement is true or false:

The absence of vegetation causes gully erosion.

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True

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answer is A.

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Detailed Solution

The given statement is true.
The absence of vegetation is the cause of gully erosion, where running water creates deep channels or gullies, taking away several layers of soil. Such erosion is visible to the eyes since the channels are several inches deep. Vegetation and forest cover play important roles in preventing soil erosion. The roots of trees hold the soil together. It prevents the running water from taking away the soil, especially on slopes. Gully erosion results create wastelands or ravines, where water has carried away soil, creating several gullies. The Chambal river valley in Madhya Pradesh is India’s largest ravine. Mahi and Sabarmati rivers in Gujarat, Banas river in Rajasthan, and Beas river in Punjab also form ravines.

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