Question

A nano metre is ----- sub unit or multiple unit​

Answer 1

Answer:

The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (0.000000001 m).

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Answer 2

Explanation:

Nanometer is sub unit because there is only one unit meter

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