Q.1
Eutrophication is often seen in .... ..... [C.B.S.E. 2011]
  • a) Oceans
  • b) Mountains
  • c) Deserts
  • d) Fresh water lakes
Q.2
Match the columns .... ..... [Kerala 2006]
a. Arsenic Minamata disease
b. Nitrate Itai - itai
c. Mercury Blue-baby syndrome
d. Cadmium Skeletal fluorosis
e. Fluoride Black foot disease
  • a) a - 5, b - 3, c - 1, d - 2, e - 4
  • b) a - 2, b - 3, c - 5, d - 1, e - 4
  • c) a - 3, b - 4, c - 5, d - 1, e - 2
  • d) a - 5, b - 4, c - 3, d - 2, e – 1
Q.3
Which is not dangerous for life? .... ... [M.P.P.M.T. 1998]
  • a) Nuclear blast
  • b) Deforestation
  • c) Ozone layer
  • d) Biopollutants
Q.4
Anthracosis is caused by ..... .... [Odisha 2007]
  • a) Iron dust
  • b) Coal dust
  • c) Cane fibre
  • d) Silica
Q.5
Process by which insecticides like DDT reach man is .... .... [C.E.T. Chd 2006]
  • a) Bioaccumulation
  • b) Biomagnification
  • c) Bioremediation
  • d) Eutrophication
Q.6
Role of CFC present in atmosphere is .... ..... [Wardha 2003]
  • a) Reduction in ozone
  • b) Ozone Formation
  • c) Formation of leghaemoglobin
  • d) Enhance chlorophyll formation
Q.7
World Environment Day is celebrated on ... ... [C.E.T. Chd .2003]
  • a) 25th Dec
  • b) 20th Sep
  • c) 5th June
  • d) 9th July
Q.8
Major aerosol pollutant in jet plane emission is ..... [M.P.P.M.T.1998]
  • a) Sulphur dioxide
  • b) Carbon monoxide
  • c) Methane
  • d) Flurocarbon
Q.9
In 2002 AD, CFC concentration of atmosphere was .... .... [M.P.P.M.T. 2007]
  • a) 261 ppt
  • b) 326 ppb
  • c) 1750 ppb
  • d) 368 ppm
Q.10
BOD is .... ..... [C.B.S.E. 2001]
  • a) Amount of oxygen consumed by microorganisms for decaying organic matter per unit volume of water
  • b) Amount of CO2 consumed by microorganisms per unit of sewage water
  • c) Amount of oxygen required by aquatic plants for survival
  • d) None
Q.11
Biomagnification refers to .... .... [Kerala 2004]
  • a) Rapid growth due to excessive intake of nutrients
  • b) Increase in population size
  • c) Decrease in population size
  • d) Increase in concentration of nondegerdable pollutants as they pass through food chain
Q.12
Which pollutant causes (a) Damage to neuron (b) Dryness in throat (c) Headache and blurred vision .... ....[Guj C.E.T. 2010]
  • a) Hydrocarbons
  • b) Hydrogen sulphide
  • c) Hydrogen fluoride
  • d) Hydrogen cyanide
Q.13
Water is often treated with chlorine to .... .... [J.K.C.M.E.E. 2000]
  • a) Increase oxygen content
  • b) Kill germs
  • c) Remove hardness
  • d) Remove suspended particles
Q.14
Warm ocean surge or Peru current that recurs after 5-8 years in East Pacific along South America is ..... .... [C.B.S.E. 1998]
  • a) El Nino
  • b)Aye Aye
  • c) Mangox
  • d) Gulf Stream
Q.15
Global agreement to reduce release of ODS .... .... [ H.P.P.M.T. 2010]
  • d) Montreal Protocol
  • a) Vienna Convention
  • b) Rio De Janeiro Conference
  • c) Kyoto Protocol
Q.16
Oxides of sulphur and nitrogen are important pollutants of .... .... [M.P.P.M.T. 1997]
  • a) Water
  • b) Air
  • c) Soil
  • d) All
Q.17
Purpose of biological treatment of waste water is to .... .... [A.M.U. 2010]
  • a) Reduce sedimentation
  • b) Increase sedimentation
  • c) Reduce BOD
  • d) Increase BOD
Q.18
Depletion of ozone layer is due to ... ... [C.P.M.T. 1998]
  • a) Oxides of nitrogen
  • b) Oxides of carbon
  • c) Oxides of sulphur
  • d) None
Q.19
Ozone depletion shall cause higher incidence of .... ...
  • a) Skin cancers
  • b) Cataract
  • c) Decreased immunity
  • d) All the above
Q.20
Water pollution is due to ... ... [Pb .P.M.T. 1999]
  • a) Agriculture discharges
  • b) Sewage and other wastes
  • c) Industrial effluents
  • d) All
Q.21
Which one is not a pollutant normally? .... .... [C.B.S.E 1992]
  • a) Hydrocarbons
  • b) Carbon dioxide
  • c) Carbon monoxide
  • d) Sulphur dioxide
Q.22
DDT has been a major pollutant because it ... .... [A.F.M.C. 2002]
  • a) Kills aquatic animals
  • b) Kills pests
  • c) Destroys many valuable species
  • d) Is nondegerdable
Q.23
Green house effect is the cumulative result of the influences of certain gases. Identify the gas which is not involved in this influence .... .... [K.C.E.T. 2005]
  • a) Methane
  • b) Carbon dioxide
  • c) CFC
  • d) Nitrogen
Q.24
Which green-house gas other than methane is being produced by agricultural fields .... .... [C.B.S.E. 1998]
  • a) Nitrous oxide
  • b) Ammonia
  • c) Sulphur dioxide
  • d) Arsenic
Q.25
Water pollution .... .... [W.B. 2010]
  • a) Increases turbidity and deoxygenation
  • b) Decreases turbidity
  • c) Increases oxygenation
  • d) Increase photosynthesis
Q.26
Which of the following is a green house gas .... .... [K.C.E.T. 2009]
  • a) Methane
  • b) CO
  • c) Water vapour
  • d) Oxygen
Q.27
Biodegradable pollutant is ... .... [M.P.P.M.T. 2012]
  • a) Plastic
  • b) Asbestos
  • c) Sewage
  • d) Mercury
Q.28
In which year, Air Act was amended to include noise as an air pollutant ..... ..... [H.P.P.M.T. 2011]
  • a) 1972
  • b) 1981
  • c) 1987
  • d) 1990
Q.29
Ultraviolet radiation are lethal because of inactivation of .... ..... [A.M.U. 1999]
  • a) Proteins, nucleic acids and pigments
  • b) Minerals, air and water
  • c) Carbohydrates, fats and vitamins
  • d) Water, carbon dioxide and oxygen
Q.30
CFC releases a chemical harmful to ozone .... .... [Bih . P.M.T. 1996]
  • a) Fluorine
  • b) Chlorine
  • c) Nitrogen peroxide
  • d) Sulphur dioxide
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