What is Si system? Why has Si system been developed? Give reason.​

The International System of Units is the modern form of the metric system. It is the only system of measurement with an official status in nearly every country in the world. ..

SI SYSTEM WAS DEVELOPED BECAUSE

It allows people in different places and different countries to use the same units, avoid mistakes and understand each other more easily. The common base 10 of all units makes it easier and has more accurate calculations that are made without cumbersome conversion factors

d) physical means can be used to separate the components of air.