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Question-1
Which of the following oxides are released from industry and which dissolve in rain water to produce 'acid rain'?
(A)
Nitrogen and Sulfur
(B)
Nitrogen and Silicon
(C)
Nitrogen and Phosphorous
(D)
Nitrogen and Selenium
Question-2
Which of these renewable resource is used to generate electricity?
(A)
Wind energy
(B)
Hydel energy
(C)
Solar power
(D)
All of the above
Question-3
Which of the following gases do termites significantly contribute to the atmosphere?
(A)
Methane
(B)
NO
2
(C)
CO
2
(D)
Water vapour
Question-4
Pollution in car exhausts can be controlled by using:
(A)
Fractional distillation
(B)
Catalytic converters
(C)
Scrubbers
(D)
Microstrainers
Question-5
Percentage of carbon dioxide content in the atmosphere.
(A)
0.05
(B)
0.01
(C)
0.02
(D)
0.04
Question-6
When animals and plants die and rot away or buried, they slowly form:
(A)
Fossil fuels
(B)
Limestone
(C)
Biomass
(D)
Ore
Question-7
Burning of petrol containing which of the following releases this toxic metal into the environment and can cause serious health hazards?
(A)
Chromium
(B)
Tin
(C)
Lead
(D)
Selenium
Question-8
Glucose + Oxygen → CO
2
+ H
2
O
Which process is this ?
(A)
Combustion
(B)
Photosynthesis
(C)
Respiration
(D)
Transpiration
Question-9
By how much percentage is the amount of fresh water on the earth less than that of the total?
(A)
2
(B)
5
(C)
3
(D)
4
Question-10
Which of the following is used to remove pesticides and some other dissolved substances in modern water treatment process?
(A)
Scrubber
(B)
Ozone
(C)
Filters
(D)
Lime
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Cambridge Secondary Grade 9
IGCSE
Practice in Related Chapters
Nature of Matter
Elements and Compounds
Acid,Base and Salts
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Patterns and properties of Metals
Planet Earth
Introducing Chemistry
Mixtures and Separating Techniques
Particle Theory
Periodic Patterns
Chemical Change
Chemical Analysis and Experimentation
Patterns and Properties of Non-metals
Petrochemicals and Polymers
Industrial Inorganic Chemistry
Organic Chemistry
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