Geography · Earth's Interior
Which of the following statements about the Earth's inner core is correct?
- 1It is in a gaseous state composed mainly of hydrogen and helium
- 2It is in a semi-solid state composed mainly of silicate rocks
- 3It is in a solid state composed mainly of iron and nickel✓
- 4It is in a liquid state composed mainly of iron and nickel
Correct answer
It is in a solid state composed mainly of iron and nickel
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