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STRUCTURE OF THE EARTH:-

The structure of the earth is divided into four major components: the crust, the mantle, the outer core and the inner core. Each layer has a unique chemical composition, physical state and can impact life on Earth's surface. The top layer is known as an outer silicate solid crust, a highly viscous asthenosphere below which lies solid mantle, a liquid outer core whose flow generates the Earth's magnetic field and a solid inner core. Movement in the Mantle caused by variations in heat from the core causes the plates to shift, which can cause earthquakes and volcanic eruptions. These natural hazards then change our landscape, and in some cases, threaten lives and property.

THE EARTH'S INTERIOR:-

We know about the interior of the Earth through these important evidences:

• By studying meteorites
• Direct observation (rocks originating from depth)
• Experiments at higher pressure
• By studying earthquake waves (seismology)

THE CRUST:-

The outermost layer, which covers the Earth like a skin is called the crust.

"Crust" describes the outermost shell of a terrestrial planet. Earth's crust is generally divided into older, thicker continental crust and younger, denser oceaninc crust. The dynamic geology of Earth's crust is informed by plate tectonics. The main mineral constituents of the continental crust are Silica and Aluminium (SIAL) and of oceanic crust are Silica and Magnesium (SIMA). The crust has an average density of about 2.7g/cc. It is separated from the mantle by the 'Moho's Discontinuity' which is a boundary between the crust and the mantle.

THE MANTLE:-

The mantle is the mostly-solid bulk (too much amount) of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometres (1,802 miles) thick, and makes up a whopping 84% of the Earth's total volume.

THE CORE:-

The Earth's core is very hot — very dense of our planet. The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle. The core is found about 2,900 kilometres (1,802 miles) below Earth's surface, and has a radius of about 3,485 kilometres (2,165 miles). The core is mainly made up of Nickel and Ferrous (NIFE) (in which NI shows NICKEL and FE shows FERROUS). The temperature, here, is estimated to be as high as 5,000°C. The core is further divided into two sub-layers: Outer Core and Inner Core.

I hope you understand it better. You can see the diagrams given in the attachment to understand better. Please mark it as brainliest coz I didn't copy from Google.

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The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball, about 1,500 miles (2,400 kilometers) in diameter. Although this inner core is white hot, the pressure is so high the iron cannot melt.

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