Answer:
1. 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.
2. Earth's interior is generally divided into three major layers: the crust, the mantle, and the core.
3. the interior of the Earth cannot be studied by drilling holes to take samples. Instead, scientists map the interior by watching how seismic waves from earthquakes are bent, reflected, sped up, or delayed by the various layers.
Seismic wave - is an elastic wave generated by an impulse such as an earthquake or an explosion. Seismic waves may travel either along or near the earth's surface (Rayleigh and Love waves) or through the earth's interior (P and S waves).
4. It gets very hot very quickly as you journey towards the center of the Earth.
References:
https://www.nationalgeographic.org/media/earths-interior/#:~:text=The%20Earth%20is%20divided%20into,life%20in%20the%20known%20universe.&text=Earth's%20interior%20is%20generally%20divided,the%20mantle%2C%20and%20the%20core.
https://www.extremetech.com/extreme/187291-to-the-core-how-can-we-travel-to-the-center-of-the-earth
#SPREADtoLEARN
