Question

What metal is Earth's core mostly made of? a.)copper b.)titanium c.)iron d.)gold

Answer 1

Answer:

C. Iron

Explanation:

Unlike the mineral-rich crust and mantle, the core is made almost entirely of metal—specifically, iron and nickel. The shorthand used for the core's iron-nickel alloys is simply the elements' chemical symbols—NiFe. Elements that dissolve in iron, called siderophiles, are also found in the core.

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Answer 2

Answer:

Iron

Explanation:

The earth's core is mostly made up of iron and has a radius of about 760 miles. It is surrounded by a liquid outer core composed of a nickel-iron alloy.