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(5) Environmental Studies (Q. No. 121-150)
121. Eutrophication results from
(a) Agriculture and sewage water
(b) Vehicle exhaust
(c) Pesticides
(d) Industrial effluents
Answer – a
122. The cause of Bhopal disaster is
(a) Mehyl Alcohol
(b) Methyl Carbonate
(c) Methyl Iso Cyanate
(d) Methyl Sulphate
Answer – c
123. What is meant by Root Zone Process?
(a) A control measure to prevent water pollution
(b) A process by which roots of plants are spread on the ground
(c) A control measure to prevent soil pollution
(d) none of these
Answer – c
124. Exxon Valdez
(a) Oil Tanker which sank in 1989 along the coast of Alaska and marine life seriously affected.
(b) a plane which crashed and caused death of human life.
(c) a ship which wrecked on the coast of India
(d) none of these
Answer – a
125. Centre of Modern Nuclear Technology in India
(a) CRAS
(b) SARC
(c) BARC
(d) None of these
Answer – c
126. What is an Incinerator?
(a) Furnance used for burning solid waste
(b) Furnance used for treating liquid waste
(c) Both a & b
(d) None of these
Answer – a
127. Photochemical smog is called
(a) Tokyo smog
(b) London smog
(c) Los Angeles smog
(d) None
Answer – c
128. The combustion of waste in the absence of oxygen is called
(a) Haemolysis
(b) Pyrolysis
(c) Hydrolysis
(d) None
Answer – b
129. The heating of earth’s atmosphere due to trapped radiation is known as
(a) Global warming
(b) Glass- House effect
(c) Thermal effect
(d) Green House Effect
Answer – a
130. Thickness of plastic cover permissible to use
(a) 50 Microns
(b) 20 Microns
(c) 100 Microns
(d) 10 Microns
Answer – b
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