Question

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Answer 1

Answer:

It's the Inner Core

Explanation:

It is the innermost layer of planet earth & composed primary of Iron and Nickel , This is because through the geological time Iron and Nickel which are heavier elements sank down and formed the core.

And plus, the Crust (The land you stand on when you walk outside) is made of soil and rock, and the Mantle (Under the Crust) is hot liquid like lava.

Answer 2

Answer:

b. The inner core is made of iron and nickel