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Why did the step-like form develop in the relief of the Deccan Trap?

Answer and explanation

Correct answer: Due to repeated basaltic lava flows

Option B is correct because the Deccan Trap was built by numerous successive outpourings of fluid basaltic lava. Each flow cooled into a hard rock layer, and later weathering and erosion removed softer or more exposed material at different rates. This produced a series of benches and escarpments resembling steps; the word trap comes from a term associated with stairs. Coral deposits are marine sedimentary materials, glacial deposits are formed by moving ice, and Ganga alluvium is river-laid sediment of the northern plains. None explains the vast layered basaltic plateau. Repeated lava flows therefore provide the correct process.

Related tags

Indian GeographyDeccan TrapBasaltic LavaStep-Like ReliefMountains And Plateaus Of IndiaGeneral KnowledgeClass 10 Mcq

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