Moderate
The earth core is made of the following metals ______________________?
Correct answer: A. Fe & Ni
- A. Fe & Ni
- B. Mg & Ni
- C. Cu & Ni
- D. None of these
Explanation
The Earth's core is composed predominantly of iron with a significant amount of nickel, with smaller quantities of other elements. Magnesium and copper are not the principal core metals.
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