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Question-1
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-2
Photochemical smog is formed due to the release of which toxic gas?
(A)
Nitrogen dioxide
(B)
Carbon monoxide
(C)
Sulphur dioxide
(D)
Carbon dioxide
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
Which of the following produces carbon dioxide when it is heated in industry and when it moves back below the Earth's crust?
(A)
Ore
(B)
Fossil fuel
(C)
Sediments
(D)
Limestone
Question-5
With which of the following alkaline substance is acid gases from power stations passed through to make the escaping gases much less harmful?
(A)
Lime
(B)
Sodium hydroxide
(C)
Water
(D)
Aluminium hydroxide
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
How much percentage of nitrogen present in the atmosphere is unreactive?
(A)
73
(B)
78
(C)
75
(D)
76
Question-8
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
Question-9
Methane is produced by:
(A)
Cows
(B)
Rice paddy fields
(C)
Termites
(D)
All the above
Question-10
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
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Cambridge Secondary Grade 9
IGCSE
Practice in Related Chapters
Nature of Matter
Elements and Compounds
Acid,Base and Salts
Quantitative Chemistry
How far? How fast?
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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