Which gas is the major pollutant of air?
  • Carbon monoxide
  • Nitrogen
  • Oxygen
  • Propane
The increase in concentration of which gas is not responsible for Global Warming?
  • Sulphur dioxide
  • Nitrogen
  • Carbon dioxide
  • Methane
In which year Ganga Action Plan was launched?
  • 1980
  • 1984
  • 1982
  • 1985
What radiations are absorbed by CO2?
  • Ultrared radiations
  • Infrared radiations
  • Ultraviolet radiations
  • None of these
Which element is present in the exhaust of automobiles?
  • Lead
  • Calcium
  • Chromium
  • Magnesium
The phenomenon of marble cancer is due to
  • soil particles
  • fog
  • CFCs
  • acid rain
The solid or liquid particles dispersed in the air are called
  • oxides
  • acids
  • hydrocarbons
  • aerosols
The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is
  • air pollution
  • soil pollution
  • water pollution
  • noise pollution
The major causes of air pollution include
  • burning of coal and petroleum
  • afforestation
  • deforestation
  • recycling of paper
Bhopal tragedy was caused due to
  • air pollution
  • emission of poisonous gas
  • water pollution
  • leakage of poisonous gas
Which of the following contents is most harmful to aquatic animals?
  • Heavy metal ions
  • Sodium ions
  • Potassium ions
  • Chloride ions
Water containing high salt concentration can be purified by
  • boiling
  • UV irradiation
  • filtration
  • reverse osmosis
Which of the following is a non-biodegradable pollutant?
  • Sulphur dioxide
  • DDT
  • Nitrogen oxide
  • Hydrogen oxide
Which of the following is major source of water pollution?
  • Industrial wastes
  • Untreated sewage
  • Use of fertilisers
  • Toxic metals
Which of the following techniques of irrigation should be used to save water?
  • Water wheel
  • Canal irrigation
  • Drip irrigation
  • Lift irrigation
Which of the following compound causes the depletion of the ozone layer?
  • Sulphur oxide
  • Carbon dioxide
  • chlorofluorocarbons
  • None of the above
Which of the following substance is responsible for acid rain?
  • Sulphur oxide
  • Carbon monoxide
  • Both I and II
  • None of the above
Which of the following compound is used for cooking that releases harmful gases?
  • Charcoal
  • Wax
  • Both I and II
  • None of these
Which of the following can be considered as an alternate source of energy that can reduce air pollution?
  • Wind Energy
  • Thermal Power Plant
  • Both I and II
  • None of these
Which of the following is a source of water pollution?
  • Sedimentation
  • Boiling
  • Domestic Sewage
  • None of these
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