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What conclusion is drawn from the old and eroded form of the Aravalli?

Answer and explanation

Correct answer: It is an ancient range that has undergone long erosion

The governing concept is the relation between geological age, uplift, and erosion. The Aravalli Range is one of the oldest fold mountain systems in the Indian subcontinent. It has experienced geological weathering and erosion for a very long time, so its relief is generally lower, more discontinuous, and more rounded than that of young mountains such as the Himalaya. Option A correctly draws this conclusion from its old and eroded appearance. Option B reverses the age relationship because the Himalaya is geologically younger and still tectonically active. Option C is wrong because Aravalli is not made entirely of glacial material, and option D describes coral islands, a marine biological landform unrelated to this ancient continental range.

Related tags

Indian GeographyAravalli RangeAncient MountainsErosionMountains And Plateaus Of IndiaGeneral KnowledgeClass 10 Mcq

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