Question

Give a brief description of three
layer of the earth?​

Answer 1

Earth is divided into three main layers: the core, the mantle and the crust.

Core:

It is the center and the hottest layer of the Earth. The inner core is solid and made up of iron and nickel with temperature up to 5,500C.

The temperature of the outer core is around 4000F to 9000F. It is so hot that the metals inside are all in the liquid state.

Mantle:

Mantle is the widest section of the Earth. Its thickness is approximately 2,900 km. It is mainly made up of semi-molten rock known as magma. The rock is hard in the upper part of the mantle, but lower down the rock is softer and begins to melt.

Crust:

The crust is the outer layer where we live. The thickness is around 0-60 km. It’s a solid rock layer divided into two types:

Continental crust covers the land and,  oceanic crust covers water.

Answer 2

Answer:

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