3 Answered Questions for the topic Iron

Which theory is stronger, that iron came from outside or was formed within earth?

Where is the current body of science learning towards, that iron came from meteor or it was somehow formed on earth?

What is the earth made up of?

03/23/18

If you keep an iron piece in solid state CuSO4 crystals, does any reaction proceed? What is the reason?

I have written my 10th exams today, I really need the answer to this question

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