2. Even though state (phase) changes are physical changes, they can be exothermic or endothermic. Describe the difference between physical and chemical exothermic changes. Use an example of each.

What do you mean there’s no jelly beans

The  asthenosphere  is now thought to play a critical role in the movement of plates across the face of earth's surface. according to plate tectonic theory, the lithosphere consists of a relatively small number of very large slabs of rocky material.