The two most abundant metals in the earth crust are : (a) \( \mathrm{Al}, \mathrm{Zn} \) (b) \( ...

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The two most abundant metals in the earth crust are :
(a) \( \mathrm{Al}, \mathrm{Zn} \)
(b) \( \mathrm{Ag}, \mathrm{Au} \)
(c) \( \mathrm{Fe}, \mathrm{Cu} \)
(d) \( \mathrm{Fe}, \mathrm{Al} \)
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