A: The key characteristics of the Earth's layers are the thinness of the crust, the rigidity of the upper mantle and the viscosity of the lower mantle and the asthenosphere. Other characteristics are the liquid state of the outer core, and the great heat and pressure of the inner core.
https://www.reference.com/science/key-characteristics-different-layers-earth-99ed959aa560d58b
Quick Answer. The key characteristics of the Earth's layers are the thinness of the crust, the rigidity of the upper mantle and the viscosity of the lower mantle and the asthenosphere. Other characteristics are the liquid state of the outer core, and the great heat and pressure of the inner core. Continue Reading
https://www.reference.com/science/key-characteristics-different-layers-earth-99ed959aa560d58b
The outer core of the Earth, separated by the Gutenberg discontinuity, is made up of liquid nickel and iron and is 1400 miles deep. The inner core is solid, even though the temperature is 9000 degrees F. This is because the pressure there is 45,000,000 pounds per square inch. Learn more about Layers of the Earth
https://www.reference.com/science/key-characteristics-different-layers-earth-99ed959aa560d58b
The inner core is solid, the outer core is liquid, and the mantle is solid/plastic. This is due to the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases.
https://www.universetoday.com/61200/earths-layers/
The Earth's inner core is the Earth's innermost part. It is primarily a solid ball with a radius of about 1,220 kilometres (760 miles), which is about 70% of the Moon's radius. It is composed of an iron–nickel alloy and some light elements. The temperature at the inner core boundary is approximately 5700 K (5400 °C).
https://en.wikipedia.org/wiki/Inner_core
The Earth's inner core is thought to be slowly growing as the liquid outer core at the boundary with the inner core cools and solidifies due to the gradual cooling of the Earth's interior (about 100 degrees Celsius per billion years).
https://en.wikipedia.org/wiki/Inner_core
The Earth's inner core is the Earth's innermost part. It is primarily a solid ball with a radius of about 1,220 kilometres, which is about 70% of the Moon's radius. It is composed of an iron–nickel alloy and some light elements. The temperature at the inner core’s surface is approximately 5,700 K, which is about the temperature at the surface of the Sun.
https://en.wikipedia.org/wiki/Inner_core
If true, this would mean that the Earth's solid inner core is not a primordial feature that was present during the planet's formation, but a feature younger than the Earth (the Earth is about 4.5 billion years old).
https://en.wikipedia.org/wiki/Inner_core
What are the four layers of the earth? A: The Earth is divided into four layers: crust, mantle, outer core and inner core. The crust is the only layer of Earth that hosts life, as the mantle, inner... Full Answer >
https://www.reference.com/science/key-characteristics-different-layers-earth-99ed959aa560d58b
Inner core. The Earth's inner core is the Earth's innermost part. It is primarily a solid ball with a radius of about 1,220 kilometres (760 miles), which is about 70% of the Moon's radius.[1][2] It is composed of an iron–nickel alloy and some light elements.
https://en.wikipedia.org/wiki/Inner_core
what are the characteristics of the earth's inner core
The Earth's inner core is the Earth's innermost part. It is primarily a solid ball with a radius of about 1,220 kilometres, which is about 70% of the Moon's radius. It is composed of an iron–nickel alloy and some light elements. The temperature at the inner core’s surface is approximately 5,700 K, which is about the temperature at the surface of the Sun.