Question

1. if you increased pressure on an earth material, what generally happens to its density?

Explanation:

When pressure on an Earth - material is increased, the particles are forced closer together. This reduces the volume of the material while the mass remains constant. Since density is mass per unit volume ($
ho=\frac{m}{V}$), a decrease in volume with constant mass leads to an increase in density.

Answer:

The density generally increases.