Question

note for need of standard unit of measurement ​

Answer 1

measurement of what ?

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Answer 2

●A standard unit of measurement provides a reference point by which objects of weight, length, or capacity can be described.

●A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

●Scientists all over the world have accepted a set of standard units for measurements. This system of units is called International System of Units (SI units.