A teacher is explaining the steps in the process of convection to her class. She describes how convection in the mantle of Earth is responsible for Causing new rock to form.
Place the steps of rock formation by convection in the order in which they occur.
Rising hot rock forms new
crust, which moves the old
Old parts of the plates sink
downward
crust.

Btw this is science class

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.

heat from the core of the earth causes convection currents to occur in the mantle. these currents slowly move the crust around.