To help predict eruptions, scientists often rely on
rock samples.

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest

false

because it does not have the potential to be entirely used up

there is none because earth is stationary and flat.