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15
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What is the third step in the water treatment process?
Settling
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15
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What type of pollution comes from water soluble nitrates, ammonia and phosphates. They are often from sewage, agriculture, and urban fertilizers.
Plant Nutrients
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15
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What type of water pollution comes from oil, gasoline, plastics, detergents, often from surface runoff, industries, and cleaners?
Organic Chemicals
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15
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What type of water pollution comes from soils and silts from land erosion?
Sediment
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What is the source of pollution called when you can specifically locate where it is coming from?
Point Source
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What type of water pollution comes from bacteria & viruses often from animal and human waste?
Infectious Agents
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thief
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5
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25
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fairy
Take points!
5
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25
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gift
Win 20 points!
Okay!
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baam
Lose 25 points!
Oops!
20
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What is the 5th step in the water treatment process? What is the purpose of it?
Post Chlorination - chlorine levels are adjusted, water is disinfected (chlorine, ozone, or uv light)
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What is the fourth step in the water treatment process?
Sand filtration
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What type of water pollution comes mostly from power plants?
Heat Pollution or radioactivity
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15
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What type of water pollution is the largest contributor to ocean dead zones?
Plant Nutrients
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seesaw
Swap points!
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seesaw
Swap points!
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fairy
Take points!
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25
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banana
Go to last place!
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15
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What are some optional last steps in water treatment?
Aeration, PH adjustment, Fluoridation
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lifesaver
Give 20 points!
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rocket
Go to first place!
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shark
Other team loses 15 points!
Okay!
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baam
Lose 25 points!
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20
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What is the second step in the water treatment process? What does it do?
Flocculation - removal of bacteria and impurities (by way of binding them to flocs that settle to bottom of tank)
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15
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What type of water pollution comes from acids and toxic chemicals often from runoff, industries, and household cleaners?
Inorganic Chemicals
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