A decibel.
Decibels are the scale used for measuring the volume of sounds.
A cubic centimetre (cm3) is a unit of volume (V).
Volume is measured in cubic units
the unit is m3 (cubic metre)
litres would do.
Litres For smaller amounts, millilitres can be used.
Millilitre or litre
Liters & milliliters
A beaker is a container which can also be used as a measuring device for volume. It is not a unit of measurement.
millilitre
The unit of measuring loudness of sound is called the decibel (dB). The decibel scale is logarithmic and is used to compare the intensity of different sounds.
dm3 or litre --------------------------------------------------------------- The volume unit in SI is the cubic metre (m3). The litre (L or l) is only an "accepted" unit in SI; 1 m3 = 1 000 L.