Lava at earth’s surface or below earth’s surface cools and hardens to form mineral crystals.

The most appropriate answer would be magma. Lava is a magma that reaches the Earth's surface, which is technically it is also a magma, and magma is located below the Earth's surface. Lava at Earth's surface or magma below Earth's surface cools and harden to form mineral crystals.

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

am i too late?

explanation: