Pollution in Air and Water (MCQs)
Q1: In general, oxides of non metals are ________ in nature?
(a) basic
(b) acidic
(c) neutral
(d) amphoteric
Q2: The percentage of which of the following components of air always varies from one place to the other?
(a) O₂
(b) N₂
(c) Water vapour
(d) CO₂
Q3: Which of the following is not a green house gas?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Methane
(d) Nitrogen
Q4: The average composition of Oxygen by volume in air is?
(a) 21%
(b) 4%
(c) 78%
(d) 30%
Q5: Which of the following gas is the main cause for acid rain?
(a) CO₂
(b) SO₂
(c) N₂
(d) He
Q6: Which of the following is mainly responsisble for depletion of ozone layer?
(a) Nitrogen gas
(b) Argon
(c) Coal
(d) CholoroFluoro Carbons
Q7: A gas which is combustible and can support combustion is?
(a) oxygen
(b) nitrous oxide
(c) nitric oxide
(d) carbon monoxide
Q8: The term “biomagnification” refers to
(a) growth of organism due to food consumption.
(b) increase in population size.
(c) increase in the concentration of non-degradable pollutants as they pass through food chain.
(d) decrease in population size.
Q9: A chemical method used for killing germs in water is:
(a) Filtration
(b) Decantation
(c) Chlorination
(d) Loading
Q10: Which among the following is a biodegradable pollutant?
(a) DDT
(b) domestic waste
(c) aluminium foil
(d) fertlizers
Q11: Which among the follwing is considered as cleaner fuel?
(a) Coal
(b) Cown Dung Cakes
(c) LPG
(d) Wood
Q12: Alternative to fossil fuel to reduce pollution:
(a) Solar energy
(b) Hydro power
(c) Wind energy
(d) All of these
Q13: Most abundant water pollutant is
(a) Detergent
(b) Industrial waste
(c) Pesticide
(d) Oil spill
Q14: Which of the following is the result of global warming?
(a) Change in rainfall patterns.
(b) Rise in sea land.
(c) Water evaporation form water bodies.
(d) All of these.
Q15: Taj Mahal is threatened (causing marble cancer) due to the effect of
(a) hydrogen
(b) oxygen
(c) chlorine
(d) sulphur dioxide
Answers:
1. (b) acidic
2. (c) Water vapour
3. (d) Nitrogen
4: (a) 21%
5: (b) SO₂
6: (d) CholoroFluoro Carbons
7: (a) oxygen
8: (c) increase in the concentration of non-degradable pollutants as they pass through food chain.
9: (c) Chlorination
10: (b) domestic waste
11: (c) LPG
12: (d) All of these
13: (b) Industrial waste
14: (d) All of these.
15: (d) sulphur dioxide
ЁЯСЙSee Also:
Ch 18 - Pollution of Air and Water (NCERT Solutions)
Ch 18 - Pollution of Air and Water (Chapter Study Notes)
Ch 18 - Pollution of Air and Water (Worksheet)
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