Question

what is standerd unit mention two standerd unit of length

Answer 1

A standard unit of measurement provides a reference point by which objects of weight, length or capacity can be described. Although measurement is an important part of everyday life, kids don't automatically understand that there are many different ways to measure things. A standard unit of measurement is a quantifiable language that helps everyone understand the association of the object with the measurement.

Metre and centimetre are two standard units of length.