Question

write summary of measurement units give fast answer it's urgent ​

Answer 1

Step-by-step explanation:

Systems of units are built up from a small number of base units, which are defined by accurate and precise measurements of conventionally chosen base quantities. ... The SI base units of length, mass, and time are the meter (m), kilogram (kg), and second (s), respectively.

Answer 2

Step-by-step explanation:

Systems of units are built up from a small number of base units, which are defined by accurate and precise measurements of conventionally chosen base quantities. ... The SI base units of length, mass, and time are the meter (m), kilogram (kg), and second (s), respectively.