Question

What is the composition of Earth's core? (1 point)
O mostly iron
O mostly silicate material
O very liquid
O very dense

Answer 1

Answer:

The inner core is believed to be composed of an iron–nickel alloy with some other elements. So I guess mostly iron

Answer 2

The earth is made up of three layers that are (upper and lower )crust, (Upper and lower) mantel and (inner and outer) core.

• The inner core of the earth is made of entirely of metal that is iron and Nickel. It appear to solid compared to the outer core and has a density of  9.9-12.2 g/cm.  

• The temperature of inner core is 5,200°C and has a pressure of 3.6 million ATM.

• Hence the option A is correct, as its mostly iron.

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