Which metal was unknown to Indus Valley Civilization?
Q. Which metal was unknown to Indus Valley Civilization? (a) Gold (b) Silver (c) Copper (d) Iron Ans: (d) Iron Explanation: The metal that was unknown to the Indus Valley Civilization was (d) Iron. Iron metallurgy and its widespread use came into prominence during a later period in human history, known as the Iron Age, […]
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