Water to Drink question with complete solution 2023

Water to Drink question with complete solution 2023Coagulation - correct answer The process by which particles in a liquid clump together. Coliform - correct answer A type of bacteria found in human and animal wastes. Concentration - correct answer The amount of one substance in a certain volume of another substance. Filtration - correct answer The process of passing water through a series of screens that allow the water through, but not larger solid particles. Hardness - correct answer The level of the minerals calcium and magnesium in water. pH - correct answer The measurement of how acidic or basic a substance is, on a scale of 0 (very acidic) to 14 (very basic). Water Quality - correct answer The degree of purity of water, determined by measuring the substance in water besides water molecules Describe three water problems affecting developing nations. - correct answer Diarrhea illnesses or other diseases spread by contaminated water, such as typhoid and cholera; Standing, open water bodies make attractive breeding grounds for mosquitoes, which may transmit malaria; Standing water also may host snails, which may carry schistosomiasis, a tropical disease that affects the urinary and intestinal systems. How does hard water differ from soft water? - correct answer Hard water has more calcium and magnesium than soft water. What factors affect water quality? - correct answer Disease causing bacteria, pH, chemicals, and hardness The ____________________ of water is a measurement of how acidic it is, on a scale of 0 to 14. - correct answer pH In a typical drinking-water treatment process, __________ is when air is forced through the water to reduce the unpleasant odors and taste. - correct answer aeration The first step in treating drinking water, called ____________________, involves passing water through a series of screens. - correct answer first filtration