question: What three parts is the earth divided into?
distractor3: troposphere, atomosphere, xerosphere
distractor1: crust, core, magma
distractor2: oceans, land, air
correct_answer: crust, mantle, core
support: From outside to inside, Earth is divided into crust, mantle, and core. Each has a different chemical makeup. Earth can also be divided into layers with different properties. The two most important are lithosphere and asthenosphere.