Respuesta :

yasadisiruya
i believe it’s because specific gravity is the density of a substance divided by the density of water.
madihasaqlain

Answer:

Explanation:

Inorder to determine the specific gravities of the liquids and solids , water is usually used as a reference substance. As the density of water is approximately 1gcm-3 ,the density of any material determined in gcm-3 is numerically the same as it's specific gravity measured with respect to water.