The treatment of water with _________ improves the taste of water
a) Oxygen b) Chlorine c) KMnO4 d) Ozone
a) Oxygen b) Chlorine c) KMnO4 d) Ozone
a) KMnO4 b) MnO4 c) Potassium d) Magnesium
a) Decaying organic matter b) Detergents c) Phenols d) Dissolved oxygen
a) Nitrogen b) Bismuth c) Phenols d) Dissolved oxygen
a) Fertilizer b) Pesticide c) Reagent d) Medicine
a) Sludge formed b) Dissolved impurities c) Dissolved solids d) Micro organisms