Answer the following in one or two sentences:

Mention the layers of the interior of the Earth.

There are two types of layers for the planet earth namely outer and inner. The interior of the Earth has three different layers namely the crust, the mantle and the core.

The Crust

The crust is the outermost layer of the earth. It is the skin of the earth. It is the solid and rigid part of the earth. The plants and trees exist on the crust. It extends from 5km to 30km. The thickness of the crust is greater below the continents than the oceanic floor.

The Mantle

Interior part beneath the crust is known as Mantle. It extends up to 2900 km thick. The major elements found in the mantle are Silica (Si) and Magnesium (Mg), hence it is popularly known as SIMA. In the upper part of the mantle the rock remains solid and inner part of the mantle the rock remains in liquid form.

The Core

The core is the innermost layer of the earth which is just below the mantle. It is composed of minerals of Nickel (Ni) and Iron (Fe). Hence it is popularly known as NIFE. There are two types of core, namely solid outer core and Liquid inner core. Since there is a large amount of iron in the core, it is responsible for Earth's Gravitational Force.