Answer:
The three basic parts of the Earth are the crust, the mantle, and the core.
Crust: The crust is the outermost and thinnest layer of the Earth, with an average thickness of about 35 km. It consists of a variety of rocks and minerals and is divided into two types: the continental crust and the oceanic crust. The continental crust is thicker and less dense than the oceanic crust, and it primarily consists of granitic rocks. The oceanic crust is thinner and more dense than the continental crust, and it is made up of basaltic rocks.
Mantle: The mantle is the layer of the Earth that lies between the crust and the core. It is the largest layer of the Earth and is approximately 2,900 km thick. The mantle is composed of hot, dense, and viscous rock that flows very slowly over geological time. The upper part of the mantle is solid, but the lower part is thought to be partially molten.
Core: The core is the central and innermost layer of the Earth, and it is divided into two parts: the outer core and the inner core. The outer core is a liquid layer composed mainly of iron and nickel, and it is responsible for generating the Earth's magnetic field. The inner core is a solid sphere of iron and nickel that is about 1,200 km in diameter and is under immense pressure due to the weight of the surrounding layers.
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