There are many uses for the term (see link). The question needs to be more specific.
unit of measurement
what is KGA in unit of a measurement
There is no possible answer. A gram is a unit of measurement. There are no 0s in any unit of measurement.
The exponent is a characteristic of a number. A measurement unit does not have an exponent. Since a metre is a measurement unit, it does not have an exponent.
Multiply
Either the Hertz, the symbol per second, or the bit per second. And of course their multiples.
The meter.
meters
Amp
The basic unit of measurement for parallels of latitude is the degree. There are 180 degrees from the North Pole to the South Pole.
No, it is a basic measurement unit.
meter
the meter
The basic unit is a byte.
A kilogram is the base unit for mass in the SI system.
The basic measurement unit is a metre.
The base unit of length is the metre.