Question

Explanation about the structure of the earth

Answer 1

see The internal structure of the Earth is layered in spherical shells: an outer silicate solid crust, a highly viscous asthenosphere and mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core.
i hope this helps you

Answer 2

structure of Earth is live oval. (orange)

it is not completely spheres.

it is tiled in it's axis