Question

what is the SI Unit ? Why are the SI units preferred over local units​

Answer 1

Answer:

There are several reasons why SI is preferred to the old English system of measurement: SI is not based on the arbitrary construct of the human body; rather, on precise and definite standards. SI uses base 10, just like our number system, so it is much easier to learn, remember and convert between units....

Answer 2

SI unit is standard unit which is used internationally all over the world

fullform- System International unit