Question

main features of crust,mantle and core​

Answer 1

Explanation:

Structure of Earth

The internal structure of Earth is layered in spherical shells: an outer silicate solid crust, a highly viscous asthenosphere and mantle, a much less viscous liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core. ...

The force exerted by Earth's gravity can be used to calculate its mass.

Answer 2

Answer:

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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.