Question

diluting a pollutant over and over until it is very difficult to detect is known as which of these processes? serial dilution oxidation reaction evaporation nuclear reaction

Explanation:

Serial dilution is a step - by - step process of diluting a substance (in this case, a pollutant) multiple times. Oxidation reaction involves the loss of electrons by a substance. Evaporation is the process of a liquid turning into a gas. Nuclear reaction involves changes in the nucleus of an atom. Since the question is about diluting a pollutant repeatedly, serial dilution is the relevant process.

Answer:

serial dilution