A kilometer is already a metric unit.
I not a metric unit of anything! A litre is one metric unit for volume.
No, It's the metric unit for length
The end of the word tells you that this is a metric unit.
the metric unit for volume is: liter/s
A liter is the metric unit of volume
-- cubic kilometer -- cubic meter -- liter -- milliliter / cubic centimeter -- microliter
The metric unit of volume (Liter) is the volume of 1 kilogram of water.
The standard unit of volume in the metric system is the liter.
metric unit of measure for volume is mm cube .