GEOLOGY

Detailed explanation-1: -The central part of the earth which is in solid state is inner core . The Earth has an outer solid layer called the crust, a highly viscous layer called the mantle, a liquid layer that is the outer part of the core, called the outer core, and a solid centre called the inner core.

Detailed explanation-2: -Inner Core The inner core is a hot, dense ball of (mostly) iron. It has a radius of about 1, 220 kilometers (758 miles). Temperature in the inner core is about 5, 200° Celsius (9, 392° Fahrenheit). The pressure is nearly 3.6 million atmosphere (atm).

Detailed explanation-3: -Explanation: The barysphere is the innermost (core) of the earth’s crust.

Detailed explanation-4: -Answer: Centre is the other word for the word core.

Detailed explanation-5: -EARTH’S INNER CORE The middle of the sphere of Earth is a solid ball of hot metal, mostly iron. It is extremely hot (about 5200C), which is well above the boiling point of iron. It is hot because it has other elements dissolved in it and as they decay*, they release heat.