metre
The unit of measuring wavelength of light is typically in nanometers (nm). One nanometer is equal to one billionth of a meter, making it a convenient unit for measuring the very small wavelengths of light.
Wavelength is usually measured in metres or millimetres.
The unit for measuring the volume of sound is the decibel.
Poise is a measuring unit of Viscosity.
A kilogram is a unit of measuring weight.
For measuring WHAT?
The SI unit for measuring temperature is Kelvinkelvin kelvin
nanometer
The SI unit for measuring weight (the force due to gravity) is the newton.The SI unit for measuring mass is the kilogram.
For visible light, the wavelength will usually be specified in nm (nanometers).
another unit for measuring distances is AU (Astronmical Unit)
A suitable unit for measuring age is years.