Question

why is essential to have a standard system of unit long answer​

Answer 1

Explanation:

because S.I system is:

of suitable size

can be reproducable

cannot change with tempreature and time

acceptable all around the world

Answer 2

Answer:

earlier there were units such as footspan , handspan etc. therefore the measure was not uniform it would change not only from person to person but would also create a problem . Hence a uniform unit of weights and measure was necessary . It known as System International (S .I unit) ..

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