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Water Interconversion And Water Treatment Multiple Choice
Test Description: Contains water purification
Instructions: Answer all questions to get your test result.
1) Which is NOT an form of Precipitation?
A
Hail
B
Snow
C
Water Vapor
D
Rain
2) What is the name of the process by which plants lose water to the atmosphere by evaporation from leaves?
A
Surface Run off
B
Photosynthesis
C
Respiration
D
Transpiration
3) Which of the following is NOT an ESSENTIAL function of water to life?
A
Habitat to marine organisms
B
Helps keep plants upright
C
Solvent in our blood and cells
D
As a raw material in manufacturing of food products
4) What is the name of the process which results in the formation of clouds?
A
Condensation
B
Surface run-off
C
Evaporation
D
Precipitation
5) In the water treatment process, what is the name of the first step?
A
filtration
B
sedimentation
C
Coagulation
D
Chlorination
6) What is the reason that Alum (aluminum sulphate) is added to raw water in water treatment processes?
A
To kill bacteria in water
B
clump together suspended sediments such as sand and silt
C
To separate large suspended particles from water
D
To allow suspended particles to settle out under the influence of gravity
7) What is the reason the chemical chlorine is added to raw during water treatment?
A
To protect teeth from decay
B
To reduce the acidity of the water
C
To kill bacteria present in the water
D
To remove suspended particles from the water
8) How is water usually filtered in the Filtration step in Trinidad?
A
By the use of very fine netting material
B
By straining using metal sieves
C
By the use of carbon beds
D
By flowing through a series of sand beds
9) What is one Alternate source of water?
A
Waste water (from sewage)
B
Rain water
C
River water
D
Sea water
10) Which of the following is NOT away in which we can conserve water?
A
Installing self regulator taps
B
Using a sprinkler to water plants
C
dual flush systems
D
washing full loads of laundry
*select an answer for all questions
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