How will you determine that a given sample of water is pure or polluted?

Answer 1

To determine if a sample of water is pure or polluted, you can conduct physical, chemical, and biological tests. Physically, you can assess clarity, color, and odor. Chemically, you can test for contaminants such as heavy metals, pesticides, or excess nutrients using methods like spectrophotometry or chromatography. Biologically, analyzing for harmful microorganisms or pathogens through microbiological assays will provide insight into the water's purity.