Environmental Issue

1. Which of the following facts is incorrect?
   (a) Global warming is the rise in the average temperature of the earth’s climate system
   (b) Eutrophication is observed in water bodies
   (c) The greenhouse effect is a natural phenomenon
   (d) Ozone is harmless to breathe

2. Areas that are under the influence of DDT may observe a decline in the population of birds. This is due to the fact that :
   (a) Birds stopped laying eggs altogether
   (b) The eggs did not hatch
   (c) Predation of the eggs increased
   (d) None of the above

3. Measuring BOD (biological oxygen demand) is primarily used for :
   (a) Estimating the types of microbes
   (b) Determine the level of dissolved oxygen
   (c) Estimating the quantity of organic matter in sewage water
   (d) None of the above

4. Cosmic rays, such as gamma rays are a source of :
   (a) Soil Pollution
   (b) Noise Pollution
   (c) Thermal Pollution
   (d) Radiation pollution

5. The primary agenda of the Kyoto protocol is :
   (a) Regulation of hazardous wastes
   (b) Regulate the production of nuclear energy
   (c) Control anthropogenic sources of greenhouse gases
   (d) None of the above

6. The presence of ......... in a water body is an indicator of water pollution.
   (a) Zygosporangium
   (b) E.Coli
   (c) Deinococcus radiodurans
   (d) None of the above

7. Eggshells of birds become unusually thin when exposed to the pesticides in their environment. The protein that gets affected is ..........
   (a) Calmodulin
   (b) Cysteine
   (c) Serine
   (d) None of the above

8. Lichens are good bioindicators for :
   (a) Environmental radiation
   (b) Soil pollution
   (c) Water and air pollution
   (d) None of the above

9. A moth having a speckled wing, able to blend into its background due to its dark colouration is called :
   (a) Industrial melanism
   (b) Adaptation
   (c) Predation
   (d) Evolution

10. Carbon dioxide is primarily called a greenhouse gas because :
    (a) Traps heat
    (b) Traps light
    (c) Traps warm currents
    (d) None of the above

11. Trichoderma harzianum is a ........ that is predominantly used as a fungicide :
    (a) Virus
    (b) Fungus
    (c) Bacteria
    (d) Protozoa

12. Greenhouse gases are those that absorb and emit infrared radiation. Examples include ............. .
    (a) Nitrogen
    (b) Ozone
    (c) Argon
    (d) None of the above

13. Depletion of the ozone layer is damaging to human health. Negative effects include :
    (a) Skin cancers
    (b) Osteoporosis
    (c) Dyspepsia
    (d) None of the above

14. .......... is an organism used to gauge the quality of an ecosystem.
    (a) Decomposers
    (b) Predator
    (c) Bio-remediator
    (d) Bioindicator

15. ............. is a waste disposal method where solid organic wastes are converted to the residue and gaseous products through combustion.
    (a) Incarnation
    (b) Incineration
    (c) Incarceration
    (d) Incubation

16. The natural aging of the lake is called :
    (a) Biomagnification
    (b) Eutrophication
    (c) BOD
    (d) None of the above

17. The Environment Act of Government of India was passed in :
    (a) 1976
    (b) 1966
    (c) 1986
    (d) 1996

18. The agents that bring undesirable changes in the environment are called :
    (a) Pollution
    (b) Fragments
    (c) Pollutants
    (d) None of the above

19. Particulate matter can be removed by :
    (a) Catalytic converter
    (b) Converter
    (c) Radioactive converter
    (d) Electrostatic converter

20. The petrol used in engines filled with catalytic converter should be :
    (a) Simple petrol
    (b) Any type of petrol
    (c) Unleaded petrol
    (d) None of the above

21. Which metal inactivates a catalytic converter?
    (a) Gold
    (b) Iron
    (c) Silvers
    (d) Lead

22. Noise is :
    (a) Pleasant sound
    (b) Desirable level of sound
    (c) Undesirable high level of sound
    (d) None of the above

23. The Government of India passed the Water Act in :
    (a) 1954
    (b) 1964
    (c) 1974
    (d) 1984

24. Presence of large amount of nutrients in water cause excessive growth of :
    (a) Lotus
    (b) Fungal bloom
    (c) Bacterial bloom
    (d) Algal bloom

25. The world's most problematic aquatic weed is also called :
    (a) Terror of Delhi
    (b) Terror of Mumbai
    (c) Terror of Bangalore
    (d) Terror of Bengal

26. DDT can cause :
    (a) Eutrophication in aquatic plants
    (b) Biomagnification in aquatic plants
    (c) Cultural eutrophication in aquatic plants
    (d) None of the Above

27. Sanitary landfill were adopted as the substitute for :
    (a) Sewage
    (b) Biomagnification
    (c) Eutrophication
    (d) Open-burning dumps

28. The powder of recycled modified plastic is called :
    (a) Polythene
    (b) Polyblend
    (c) Polyester
    (d) None of the above

29. E-wastes are referred to :
    (a) Radioactive waste
    (b) Nuclear waste
    (c) Can be both (a) and (b)
    (d) Electronic waste

30. The greenhouse gases are :
    (a) Hydrogen and Oxygen
    (b) Oxygen and nitrogen
    (c) Helium and Argon
    (d) Carbon dioxide and Methane

31. The present average temperature of earth is :
    (a) 10°C
    (b) 12°C
    (c) 14°C
    (d) 15°C

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