Question

define relative density ​

Answer 1

Explanation:

Relative density, or specific gravity, is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. ... The term "relative density" is often preferred in scientific usage.

Answer 2

Answer:

the ratio of the density of a substance to the density of a standard, usually water for a liquid or solid, and air for a gas.