Water Pollution 2 - JSS1 Physical and Health Education Past Questions and Answers - page 1
1
What does water purification involve?
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A
Making water dirty
B
Making water clean and safe for use
C
Turning water into juice
D
Turning water into soda
2
Which method involves heating water to kill pathogens?
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A
Boiling
B
Distillation
C
Filtration
D
Chemical Treatment
3
What is used as a physical barrier in filtration?
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A
Sand and gravel
B
Salt and sugar
C
Oil and vinegar
D
Milk and honey
4
Which chemical is commonly used to treat water?
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A
Chlorine
B
Oxygen
C
Carbon dioxide
D
Hydrogen
5
What method involves heating water to create steam?
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A
Filtration
B
Reverse Osmosis
C
Distillation
D
UV Disinfection
6
What method involves heating water to create steam?
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A
Filtration
B
Reverse Osmosis
C
Distillation
D
UV Disinfection
7
What does reverse osmosis use to remove impurities?
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A
Salt
B
Sugar
C
Semipermeable membrane
D
Sand
8
Which method uses UV light to kill microorganisms?
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A
Boiling
B
Filtration
C
Reverse Osmosis
D
UV Disinfection
9
What is added to water in chemical treatment?
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A
Oil
B
Salt
C
Chlorine
D
Sugar
10
What can be used to simulate natural filtration processes?
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A
Rocks and stones
B
Plastic and metal
C
Sand and gravel
D
Leaves and branches
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