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प्रश्न
______ is the earliest metal used by man.
विकल्प
Iron
Manganese
Bauxite
Copper
MCQ
रिक्त स्थान भरें
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उत्तर
Copper is the earliest metal used by man.
Explanation:
Copper is the earliest metal used by humans. During the Copper Age (Chalcolithic period), it was one of the first metals to be mined and used in tools, weapons, and ornaments.
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