what is the smallest and biggest unit of mass,time,length. plz answer fast.
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For mass the smallest to largest is millimeter, centimeter, decimeter, meter, dekameter, hectometer, and kilometer.
For time one picosecond (one-trillionth of a second) is currently the shortest period of time able to be accurately measured, largest unit is difficult to guess it could any thing as 1 millennium is 1,000 years.
For length In metric system: mm = millimeters,cm = centimeters,dm = decimeters,m = meters,km = kilometers.