Answer :
Densities are commonly used to characterize and infer the composition of various sorts of mixes as well as to distinguish between pure materials.
Density is often measured in grams per cubic centimeter. For instance, water has a density of 1 grams per cubic centimeter, compared to Earth's density of 5.51 grams. The kilograms per cubic meter unit is another way to express density (in metre-kilogram-second or SI units). A substance or object's mass is a measure of how much matter there is in it. The basic SI unit of mass is the kilogram (kg), although smaller quantities can also be measured in grams (g). Density is one of an object's most important and useful physical properties.
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