GENERAL SCIENCE #27
MULTIPLE CHOICE QUESTIONS
1. Which
gas is the major pollutant of air?
(a) Carbon monoxide
(b) Nitrogen
(c) Oxygen
(d) Propane
Answer:
(a)
2. The
increase in concentration of which gas is not responsible for Global Warming?
(a) Sulphur dioxide
(b) Nitrogen
(c) Carbon dioxide
(d) Methane
Answer:
(b)
3. In
which year Ganga Action Plan was launched?
(a) 1979
(b) 1982
(c) 1984
(d) 1985
Answer:
(d)
4. What
radiations are absorbed by CO2?
(a) Ultrared radiations
(b) Infrared radiations
(c) Ultraviolet radiations
(d) None of the above
Answer:
(b)
5. Which
element is present in the exhaust of automobiles?
(a) Lead
(b) Calcium
(c) Chromium
(d) Magnesium
Answer:
(a)
6. The
phenomenon of marble cancer is due to which of the following?
(a) Soil particles
(b) Fog
(c) CFCs
(d) Acid rain
Answer:
(d)
7. What
are called the solid or liquid particles dispersed in the air?
(a) Oxides
(b) Acids
(c) Hydrocarbons
(d) Aerosols
Answer:
(d)
8. Which
type of pollution is likely to affect Taj Mahal in Agra to a greater extent?
(a) Air pollution
(b) Soil pollution
(c) Water pollution
(d) Noise pollution
Answer:
(a)
9. The
major causes of air pollution include which of the following?
(a) Burning of coal and petroleum
(b) Afforestation
(c) Deforestation
(d) Recycling of paper
Answer:
(a)
10. Bhopal
tragedy was caused due to which of the following?
(a) Air pollution
(b) Emission of poisonous gas
(c) Water pollution
(d) Leakage of poisonous gas
Answer:
(d)
11. Which
of the following contents is most harmful to aquatic animals?
(a) Heavy metal ions
(b) Sodium ions
(c) Potassium ions
(d) Chloride ions
Answer:
(a)
12. Water
containing high salt concentration can be purified by which of the following?
(a) Boiling
(b) UV irradiation
(c) Filtration
(d) Reverse osmosis
Answer:
(d)
13. Which
of the following is a non-biodegradable pollutant?
(a) Sulphur dioxide
(b) DDT
(c) Nitrogen oxide
(d) Hydrogen oxide
Answer:
(b)
14. Which
of the following is major source of water pollution?
(a) Industrial wastes
(b) Untreated sewage
(c) Use of fertilisers
(d) Toxic metals
Answer:
(b)
15. Which
of the following techniques of irrigation should be used to save water?
(a) Water wheel
(b) Canal irrigation
(c) Drip irrigation
(d) Lift irrigation
Answer:
(c)
16. Carbon
monoxide in vehicle exhaust causes which of the following?
(a) Increased oxygen carrying capacity of RBCs
(b) Reduced Nitrogen carrying capacity of RBCs
(c) Reduced oxygen carrying capacity of RBCs
(d) Reduced carbon carrying capacity of RBCs
Answer:
(c)
17. Which
gas is used in refrigerating appliance causing serious damage to ozone?
(a) MFCs
(b) CFCs
(c) LPCs
(d) DPCs
Answer:
(b)
18. Acid
rain mainly contains which of the following?
(a) Sodium chloride
(b) Sulphur dioxide and nitrogen dioxide
(c) Hydrochloric acid
(d) Carbon tetra chloride
Answer:
(b)
19. Marble
cancer is caused by which of the following?
(a) Bacteria
(b) Virus
(c) Acid rain
(d) Alkali rain
Answer:
(c)
20. Which
of the following is a commonly used chemical method for purifying water?
(a) Brominization
(b) Flourination
(c) Filtration
(d) Chlorination
Answer:
(d)
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