Which transformation requires a complete meltdown of the rock inro magma

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called

In a short paragraph, describe your hometown in terms of its population and impact. do you live in a town or a city? is your home a higher-order or lower-order settlement? how does your hometown interact with other towns in its region? (houston)

In order from largest to smallest what are earths five main oceans