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.
Units of measure in the metric system include: The units of length or linear size are based on the metre. They include the kilometre (km) which is 1000 meters, the centimetre (cm), and the millimetre (mm) which is 1/1000th of a meter. The unit of volume is the litre. It is used for measuring an amount of liquid.