Question

3. Write briefly
on the three main layers of the earth. Give a suitable diagram to explane​

Answer 1

Answer:

The Composition and Structure of Earth

Core, mantle, and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. The mantle is hot and represents about 68 percent of Earth’s mass. Finally, the core is mostly iron metal. The core makes up about 31% of the Earth. Lithosphere and asthenosphere are divisions based on mechanical properties. The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid solid. The asthenosphere is partially molten upper mantle material that behaves plastically and can flow. This animation by Earthquide shows the layers by composition and by mechanical properties.

Layers of the earth, drawn to scale. The first layer is the atmosphere, the gases surrounding the planet. The hydrosphere is the water on the surface of the earth. Below this is the crust, which is divided into two types: the continental crust (granitic) and ocean crust (basaltic). The layers below this are as follows: the rigid mantle, the asthenosphere, the stiffer mantle, the outer core (liquid), and then the inner core (solid).