Removal of carbon particles from air involves the principle of
A. Precipitation
B. Filteration
C. Electrophoresis
D. Sedimentation
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Physico-chemical characteristics of water in water sources undergo changes due to
A. Aquatic macrophytes
B. Auatic fungi
C. Effluents
D. Evapotranspiration
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Sulphur dioxide present in the industrial chimney exhaust causes
A. Respiratory and lung disease
B. Reduction in plant's productivity owing to acid rain
C. Corrosion building materials
D. All of the above
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Coating of solid waste with impervious material is known as
A. Encapsulation
B. Chemical fixation
C. Landfill
D. Capping
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Taj Mahal is greatly affected due to :
A. Tourists
B. Acid rain
C. Deforestation
D. Sound pollution
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High concentration hydrocarbon pollutants in atmospheric air causes
A. Cancer
B. Silicosis
C. Respiratory diseases (e.g.asthma)
D. Reduced crop yield
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Which one is not a primary greenhouse gases in the Earth's atmosphere?
A. Carbon dioxide
B. Methane
C. Nitrogen
D. Ozone
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Which of the following is secondary air pollutant ?
A. Photochemical smog
B. NO2
C. Dust particles
D. SO2
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Sullage water is –
A. Waste water released from kitchen
B. Waste water released from toilets
C. Waste water released from factories
D. Waste water released from hospitals
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The gas liberated in the Bhopal gas tragedy was:
A. Pheynl isocynate
B. Acetylene
C. Ethylene
D. Methyl isocynate
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Heavy metal pollution of water is caused by:
A. Paints
B. Wood burning
C. Acid Plants
D. Domestic sewage
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Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful
A. Solar ultraviolet radiation
B. Solar infrared radiation
C. CO2 in the air
D. SO2 in the air
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'Bhopal gas tragedy' 1984 is related to which gas
A. Aluminium Phosphide
B. Methyl bromide
C. Methyl isocyanate
D. Carbon dioxide
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When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocation of pond that does not leave enough oxygen needed to support life. This type of pollution is called
A. Smog
B. Eutrophication
C. Green house effect
D. None of these
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Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission?
A. China, USA, European Union, India
B. USA, India, China, European Union
C. China, India, European Union, USA
D. European Union, China, USA, India
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The function of skimming tank in sewage treatment is to remove
A. Oil and fatty substances
B. Suspended solids
C. Gritty substances
D. Inorganic substances
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Acid rain is caused due to emission of which of the following into the atmosphere ?
A. Oxides of nitrogen and sulphur
B. Carbon dioxide and carbon monoxide
C. Ozone and carbon dioxide
D. Carbon monoxide and nitrogen
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The depletion of Ozone layer is mainly due to
A. Volcanic eruptions
B. Aviation fuels
C. Radioactive rays
D. Chlorofluorocarbons
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Chemical name of vinegar is
A. Acetone
B. Acetic acid
C. Formaldehyde
D. Ethanol
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Which one of the following organic compounds has fruity smell?
A. Alcohol
B. Aldehyde
C. Ester
D. Ether
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