A wetland that is wet for between 5-11 months of the year.
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25
Describe the first two steps of the water treatment process.
(1) Screening: Removing obvious pollutants using a large screen/sieve. (2) Settling/Sedimentation: allowing water to stand so that heavy particles sink to the b
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25
Give one way that we can separate dirt from water.
Filtering, Straining, Settling and decanting, Distillation.
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monster
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magnet
Take 20 points!
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fairy
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25
banana
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25
What are 2 ways that we can kill harmful microbes in water?
Boiling the water or adding chemicals (like chlorine/bleach).
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25
How do wetlands naturally filter water?
Insoluble pollutants get trapped by the roots of aquatic plants, and soluble pollutants can be absorbed by the plants, removing them from the water.
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lifesaver
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seesaw
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rocket
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baam
Lose 15 points!
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25
Why do we need clean water?
Our bodies need water to stay hydrated. Water is used to breakdown food and to flush put waste products from our body. Drinking or washing with dirty water can
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25
Give an example of a soluble and an insoluble pollutant.
Soluble: Chemicals like pesticides. Insoluble: Plastic, oil, living germs from human waste.