Q.1
Global warming can be controlled by ….[NEET 2013]
  • a) Reducing deforestation, cutting down use of fossil fuel
  • b) Reducing reforestation, increasing the use of fossil fuel
  • c) Increasing deforestation, slowing down the growth of human population
  • d) Increasing deforestation, reducing efficiency of energy usage
Q.2
The Air Prevention and Control of Pollution Act came into force in ….[NEET 2013]
  • a) 1975
  • b) 1981
  • c) 1985
  • d) 1990
Q.3
Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from :- …[NEET 2016]
  • a) Petroleum industry
  • b) Sugar industry
  • c) Domestic sewage
  • d) Dairy industry
Q.4
A lake which is rich in organic waste may result in:- …[NEET 2016]
  • a) Increased population of fish due to lots of nutrients.
  • b) Mortality of fish due to lack of oxygen
  • c) Increased population of aquatic organisms due to minerals
  • d) Drying of the lake due to algal bloom
Q.5
The highest DDT concentration in aquatic food chain shall occur in :- …[NEET 2016]
  • a) crab
  • b) eel
  • c) phytoplankton
  • d) seagull
Q.6
Which one of the following statements is not valid for aerosols? ….[NEET- 2017]
  • a) They are harmful to human health
  • b) They alter rainfall and monsoon patterns
  • c) They cause increased agricultural productivity
  • d) They have negative impact on agricultural land
Q.7
Which of the following in sewage treatment removes suspended solids? ….[NEET- 2017]
  • a) Tertiary treatment
  • b) Secondary treatment
  • c) Primary treatment
  • d) Sludge treatment
Q.8
Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of : [ ReAIPMT 2015]
  • a) oxygen
  • b) food
  • c) light
  • d) essential minerals
Q.9
Acid rain is caused by increase in the atmospheric concentration of : [ ReAIPMT 2015]
  • a) O3 and dust
  • b) SO2 and NO2
  • c) SO3 and CO
  • d) CO2 and CO
Q.10
Increase in concentration of the toxicant at successive trophic levels is known as : [ ReAIPMT 2015]
  • a) Biogeochemical cycling
  • b) Biomagnification
  • c) Biodeterioration
  • d) Biotransformation
Q.11
Which the following are most suitable indicator of SO2 pollution in the environment ? [ ReAIPMT 2015]
  • a) Fungi
  • b) Lichens
  • c) Conifers
  • d) Algae
Q.12
In stratosphere, which of the following element acts as a catalyst in degradation of ozone a release of molecular oxygen ? [NEET 2018]
  • a) Carbon
  • b) Cl
  • c) Fe
  • d) Oxygen
Q.13
Which of the following is a secondary pollutant ... ... [NEET 2018]
  • a) CO
  • b) CO2
  • c) SO2
  • d) O3
Q.14
World Ozone Day is celebrated on ... ... [ NEET 2018]
  • a) 5th June
  • b) 21st April
  • c) 16th September
  • d) 22nd April
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