Question

What is parts per million? Define with examples
Step to steps. ​

Answer 1

Answer:

just as per cent means out of a hundred so parts per million or ppm means out of a million

Answer 2

Answer:

ppm is an abbreviation of parts per million. ppm is a value that represents the part of a whole number in units of 1/1000000. ppm is dimensionless quantity, a ratio of 2 quantities of the same unit.

For example: mg/kg.