जॉइन Examsbookउत्तर : 1. "Iron"
Which is the second most abundant metal in the earth's crust ?5
प्र: Which is the second most abundant metal in the earth's crust ?
- 1Irontrue
- 2Aluminiumfalse
- 3Copperfalse
- 4Zincfalse
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उत्तर : 1. "Iron"
व्याख्या :
Answer: A) Iron Explanation:

