For 1, easier comparison, 2, easier communication, 3, easier understanding by others.
You need to specify which country used the measurement.
the unit of measurement for destiny
generally, grams. Grams is also the unit of measurement for the majority of the world.
The unit of measurement that a graduated cylinder uses is the volume/mass of water.
The SI unit for mass measurement is the kilogram (kg).
metric
degrees
You don't use it, it is a unit of measurement.
You don't use it, it is a unit of measurement.
The SI unit for temperature is the kelvin.
Atomic mass unit
If you wish to compare their respective weights then it is important to use the same units