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.
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What is the correct answer to this question?
Due to repeated basaltic lava flows
Why is this the correct answer?
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.
Which subject and chapter does this question cover?
This is a Class 10 General Knowledge question. Chapter: Indian Geography. Topic: Mountains and Plateaus of India.
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