1 For the first time in 20 years, federal health authorities have lowered the recommended limit for lead exposure in young children, which they say could add 200,000 children to those believed to have unsafe lead levels in their blood.
The volume can be measured in cubic meters, cubic centimeters, or liters. The units of the three-dimensional volume depend on the units of length-if the lengths are in meters, the volume will be in cubic meters, etc. To measure a square or cube: Volume = length times width times height.
Liter is volume unit which equals to 1 cubic decimeter. It is widely used in daily life to measure the fluids, gasoline, etc. 1 liter of water has a mass about 1 kilogram. The abbreviation is l. Gallon is an imperial and US customary unit.