What is the difference between the physical and compositional layers of the Earth?

 What is the difference between a compositional layer and a physical layer? The compositional layer is defined by the chemical composition of the layers and the physical layer is defined by the layers' physical properties (solid, liquid, or how waves move through the layer).

Explanation:

answer; seasons change because earth tilts on its axis; and the angle of the tilt causes the northern and southern hemisphere to trade places throughout the year;