The common element of NIFE layer of the earth includes
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silicon and magnesium
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nickel and iron
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silver and tungsten
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silicon and aluminum
B
Correct answer
Explanation
The Earth's core (both outer and inner) is primarily composed of Nickel (Ni) and Iron (Fe), hence called the NIFE layer. This composition is responsible for Earth's magnetic field. Silica and magnesium compose the mantle, not the core.