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Disinfection process is to make sure all ________________ are killed and ready to distribute clean water to the residents.
 
pathogens/bacteria
 
activated carbon
 
chloride
In filtration process, _____________ are used to filter water from unwanted suspended solids/bacteria.
 
sand filters
 
bleach
 
chlorine
Sedimentation process uses ___________ to pull all the remaining flocs to the bottom.
 
gravity
 
bubbles
 
sludge
Coagulation and flocculation process uses __________ and __________ to stick all the flocs together.
 
Aluminium sulfate, chloride
 
Chlorine, ozone
 
Sodium bisulfate, gravity
Water treatment plant needs to go through ___________ steps in order to distribute clean water.
 
4
 
3
 
2
 
1
Condensation process is turning water vapour into liquid and produce __________.
 
Clouds.
 
Hurricane.
 
Tornado.
Percipitation process can produce ____________ and _____________.
 
Rain, snow
 
Hurricane, tornado
 
Flood, snow
Is this percipitation process?
 
Yes
 
No
Is this condensation process?
 
Yes.
 
No.
Is this evaporation process?
 
Yes.
 
No.
Natural water resources include rain, rivers, lake, pond, streams and __________?
Sea.
Water that comes from natural process are
 
Evaporation, condensation, percipitation
 
Evaporation, operation, filtration
 
Sedimentation, condensation, disinfection
We use water mostly for
Drinking/Cooking/Bathing.
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