Question

which method is commonly used to assess the presence of organisms in a water body
1. MPN
2. DO
3. TDS
4. COD ​

Answer 1

Answer:

the answer should be 3 = TDS

Answer 2

The method used is MPN.

• The term MPN stands for most probable number method.

• It is a statical technique used to appraise the practical quantities of microbes in an example by immunizing stock in ten overlap dilutions. It is frequently utilized in assessing bacterial cells in water.

• The assessed portions of a water test are carefully set in the test tubes comprising of the required form. The measurement units are then examined for a set schedule and temperature.