मनुष्य द्वारा प्रयोग की जा – McqOptions

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1.	मनुष्य द्वारा प्रयोग की जाने वाली प्रथम धातु थी
A.	लोहा
B.	तांबा
C.	सोना
D.	पीतल
Answer» B. तांबा

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