We can label each of the following a-f as follows:
length 4.0 mm³
area 750 km²
volume 10 cm³
mass 427kg
time 1.2 pm
temperature 83 K
How to label the items
We can label the items according to their units of measurement. Length is measured in meters, millimeters, centimeters, etc. So, a fitting unit that would be a likely measure for length is 4.0 mm³.
Also, temperature is measured in Celsius or Kelvin, so an appropriate form of measurement would be the unit K. So, 83 K is a unit of temperature measurement. Mass is measurd in kilograms so, 427kg qualifies as a unit of mass.