Question

the amount of impurities is expressed as​

Answer 1

Minerals and impurities are normally present in very small concentrations, and are measured in parts per million (ppm) (how many parts of impurities in a million parts of water) or milligrams per liter (mg/l)

Explanation:

Answer 2

Answer:

If the impurities are in ore then it is known as gangue

pls mark it the brainliest pls I need to rank up