GEOLOGY

Detailed explanation-1: -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-2: -At the very center, with a radius of about 1, 227 kilometers (762 miles) is the inner core – the densest part of our planet, a solid ball mostly composed of iron and nickel, comprising less than 1 percent of Earth’s volume. This inner core is like a time capsule of Earth’s history.

Detailed explanation-3: -The inner core is the most metal place on Earth-even more so than the outer core. Both are made mostly of iron, along with a smattering of nickel. But the iron is thought to also contain traces of lighter elements like oxygen, carbon, and silicon.

Detailed explanation-4: -Innermost layer of the earth is called the core. Its radius is approximately 3500 km.

Detailed explanation-5: -The inner core is the deepest layer on Earth. It is also made up of iron and nickel but the pressure is so high that it is no longer liquid. The temperatures in the inner core are as hot as the surface of the sun, about 5505 °C. Earth’s inner core is 1, 230 to 1, 530 km thick.