The density of an object can be defined as its mass per unit volume and its units for liquids and solids are kilograms per metres cubed and for gases they usually are given in grams per liters.
(The density of an object; can be defined; as its mass per unit volume and its units for liquids and solids) (gases; are given; L:in grams per liters; T:usually)
The density of an object gases
can be defined are given
as its mass per unit volume and its units for liquids and solids
L:in grams per liters T:usually