The earth’s inner core is a solid ball of iron, nickel and other metals, while the outer core is liquid metal composed of iron and nickel as well. The temperature of the inner core is estimated to be about 5,400 degrees C or 9,800 degrees F, far beyond iron’s melting point.
1) Mass
2) I’m not exactly sure but I do know mass also determines the overall lifespan of a star
Answer:
I don't know spanish but if you know english I could help
Explanation: