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Which of the following rocks are hard and durable?(a) Argillaceous rocks(b) Siliceous rocks(c) Calcareous rocks(d) Carbonaceous rocks |
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Answer» The correct answer is (b) Siliceous rocks Explanation: Silica predominates in siliceous rock and is less affected by weathering and hence are hard and durable compared to argillaceous (clay), calcareous (calcium carbonate) or carbonaceous (carbon). |
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