Question

What are the layers of the Earth?​

Answer 1

Answer:

The Earth has 3 layers

1.Crust - It is the outermost layer of the Earth. It is colder than the rest.  It is situated above mantle.These can be further divided into continental and oceanic crust.

Continental crust - The continental crust is the layer of granitic, sedimentary and metamorphic rocks which form the continents and the areas of shallow seabed close to their shores, known as continental shelves. It is less dense than the material of the Earth's mantle and thus "floats" on top of it.

Oceanic crust - ceanic crust is the uppermost layer of the oceanic portion of a tectonic plate. It is composed of the upper oceanic crust, with pillow lavas and a dike complex, and the lower oceanic crust, composed of troctolite, gabbro and ultramafic cumulates.

2.Mantle - This layer is situated between the Earth's crust and Earth's core. It is hotter than the Earth's crust but colder than the Earth's core. These can be further divided into the upper and lower mantle.                                                      

Upper mantle - The upper mantle of the Earth begins just beneath the crust and ends at the top of the lower mantle at 670 km. Temperatures range from approximately 200 °C at the upper boundary with the crust to approximately 900 °C at the boundary with the lower mantle.

Lower mantle - The lower mantle represents approximately 56% of the Earth's total volume, and is the region from 660 to 2900 km below the Earth's surface; between the transition zone and the outer core.

3.Core - The innermost layer of Earth is called the core. It is the hottest layer of Earth. These can be further divided into inner and outer core.

Inner core - Earth's inner core is the innermost geologic layer of the Earth. It is primarily a solid ball with a radius of about 1,220 kilometres, which is about 20% of the Earth's radius or 70% of the Moon's radius. There are no samples of the Earth's core available for direct measurement, as there are for the Earth's mantle.

Outer core - Earth's outer core is a fluid layer about 2,400 km thick and composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. Its outer boundary lies 2,890 km beneath Earth's surface.

Hope this helps !!

Please mark as brainliest !!

Answer 2

Answer:

Here you are:-

Crust

Mantle

Outer core

Inner core

Explanation:

Pls Brainliest