1) What happens after we use water (bathing, cleaning, toilet, etc.)? a) Water is polluted and cannot be used again. b) Water is filtered in a septic system. c) Water is treated in wastewater plants. d) B and C are correct. 2) A septic system... a) is a system for treating wastewater at home.  b) a system to treat water in a plant. c) a system to create sludge. d) a system to improve wastewater treatments at plants. 3) How is water carried to wastewater plants? a) In trucks. b) Through septic systems. c) In underground pipes. d) In tanks. 4) When the water is removed, thick solids... a) are taken to landfills. b) are broken down by bacteria. c) are used as fertilizers. d) A and C are correct. 5) Sun or chemicals... a) sink to the bottom of tanks. b) kill bacteria in water at the wastewater plants. c) help break down natural waste. d) help the formation of sludge.

Quiz - Water Pollution

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