Question

What do you mean by parts per million? ​

Answer 1

Answer:

This is an abbreviation for "parts per million" and it also can be expressed as milligrams per liter (mg/L). This measurement is the mass of a chemical or contaminate per unit volume of water. ... One ppm is equivalent to the absolute fractional amount multiplied by one million.

thank u Anushka for pts

have a marvellous day a head...