The structure of the earth is divided into several layers including the:

The structure of the earth is divided into several layers including the crust, mantle, outer core, and the inner core.

Explanation:

The crust makes the hard shell composition of the Earth. It is on the outermost side and most of the Earth's lifeforms live on it. The mantle makes the next layer in the 'interior of the Earth' that comes after the crust. The upper mantle has been observed to have a semisolid structure, unlike the lower mantle which has a solid structure. The core has of a semisolid outer core and a possibly entirely solid inner core.

Answerseafloor spreading;

Answerleveling;