E&E - Ch. 3.24

OBJECTIVE

Choose the correct answer -

Q.1.        The main cause of ‘eutrophication’ of lakes is the enrichment of  lake water with
(i) carbonaceous organic matter      (ii) nutrients
(iii) chlorides                                        (iv) water hyacinth.                    (AKTU. - 2009-10)

Q.2     Out of the below listed greenhouse gases, which one is entirely anthopogenic in origin ?
            (a) Carbon dioxide                  (b) Methane         
            (c) Water Vapour                     (d) CFCs.                                      (AKTU. - 2010-11)

Q.3     Leachate is related with :
            (a) Composting                        (b) Vermiculture  
            (c) Landfilling                           (d) Recycling.                              (AKTU. - 2010-11)

Q.4     As pe solid waste Management Rule (2000), the inert should be :
            (a) Recycled                             (b) Disposed off into landfills
            (c) Composted                        (d) Disposed off into sea.                 (AKTU. - 2010-11)

Q.5         Match List I with List II and select the correct sequence of answers using the codes given below the lists
                List I                                                    List II
A. Carbon monoxide                          1. Acid rain
B. Carbon dioxide                              2. Ozone layer depletion
C. Chlorofluorocarbon                       3. Asphyxiation
D. Sulphur dioxide                             4. Green house effect
Code      A             B             C             D
(i)            3              4              1              2
(ii)           4              3              1              2
(iii)          3              4              2              1
(iv)          2              1              3              4                                                   (AKTU. - 2009 - 10)

Fill in the following blanks with suitable words.

Q.6         The unit of measurement of sound pressure level is ____           (AKTU. - 2009-10)

Q.7         BOD stands for __________                                                         (AKTU. - 2008-09)

Q.8         The world AIDS Day is recalled on _______                                (AKTU. - 2008-09)

Q.9         Acid rain is caused mainly is due to __________ gas in the atmosphere.                                                                                                                                (AKTU. - 2008-09, 10 -11)
 
Q.10.      Ozone concentration in the stratosphere is _______ ppm.         (AKTU. - 2008-09)

Q.11.      Chlorofluorocarbon releases a chemical harmful to ozone is __________                                                                                                                                  (AKTU. - 2008-09)

Q.12.      Greenhouse effect is related to__________                                  (AKTU. - 2008-09)

Q.13.      Green plants are also called the ___________.                             (AKTU. - 2008-09)

Q.14.      The El-Nino is a __________phenomenon of the pacific ocean.
Q.15.      Acid rain, on precipitation, is defined as the one which has a pH less than __________

Q.16.      O + O2 + N2       __________

Q.17.      CFC stands for __________

Q.18.      _________ is related to global warming.

Q.19.      The best known substance responsible for ozone layer depletion _________

Q.20.      The primary factor that governs the gas absorption by the plant leaves is the degree of opening of the __________

Q.21.      In chemical oxidation __________ are converted into ferric salts.

Q.22.      __________ are required by plants and animals for maintaining their growth and metabolism.

Q.23.      __________ is required for the photosynthetic process in plants, for respiration and production of nuclear DNA.

Q.24.      D.O. stands for __________

Q.25.      PCBs stands for __________

Q.26.      COD stands for __________

Q.27.      Unit of measurement of environmental noise pollution is __________

Q.28.      A sound pressure level at 50 dB is__________ phons when heard at 1000 Hz.

Q.29.      __________ means burning of the solid-wastes in properly constructed hearth of furnaces.

Q.30.      B.O.D. is measured in __________

Indicate True or False for the following statements

Q.31.      Environmental Protection act (1986) was formulated after Bhopal Gas Tragedy.                                                                                                                                (AKTU. - 2010-11)

Q.32.      Aluminium (Al+++) can also cause hardness in water.         (AKTU. - 2010-11)

Q.33.      Anaerobic digestion of sludge takes place in the presence of  oxygen.                                                                                                                      (AKTU. - 2009 - 10)

Q.34.      Gastroenteritis is a water borne disease.                                    (AKTU. - 2009 - 10)
Q.35.      Pollution involves contamination, but contamination need not constitute pollution.

Q.36.      Power points are area sources of air pollutants.

Q.37.      Ozone is a life saviour, if present in stratosphere, but a pollutant, if present in troposphere

Q.38.      Sulphur-mounting bacteria called ‘Seuephotobees’

Q.39.      Rain water does not create any land pollution.                         (AKTU. - 2009 - 10)

Q.40.      Only legislation is not sufficient for the control of environmental pollution..                                                                                                                                            (AKTU. - 2009 - 10)

Q.41.      Green marketing and eco-labeling are good strategies to protect environment from products.

Q.42.        Match the following -
                Urea                                       Bio-accumulation
                Carbon dioxide                   Ozone layer depletion
                Chlorofluorocarbon          Global warming
                DDT                                       Eutrophication                       (AKTU. - 2015 - 16)     
Ans.        Urea                                       Eutrophication    
                Carbon dioxide                     Global warming
                Chlorofluorocarbon              Ozone layer depletion

                DDT                                      Bio-accumulation



Choose the correct answer -
1. (ii)       2.(d)        3.(c)        4.(b)        5. (iii)                     

Fill in the blanks -
6.  Phone             
7. Biological Oxygen Demand       
8. December 1, 2004         
9. SOx and NOx
10.  8.0                 
11. Chlorine                                    
12. Global Warming             
13. Metaphytes or viridiplantae   
14. Climatic                                       
15. 5.6                                  
16.  O3 + N2                                       
17. Chloroflurocarbon                     
18. Green House Effect    
19. Chloro Fluro Carbons               
20. Stomata                                    
21.  Ferrous salts                  
22. Chemical nutrients               
23.  Phosphorus                            
24. Dissolved Oxygen       
25. Polychlorinated biphenyls                                            
26. Chemical Oxygen Demand     
27. Decibel (dB) 
28. 50                                             
29. Incineration                   
30. Parts per million (ppm)

True / False

31. True               
32. True               
33. False              
34.  True               
35. True               
36. False              
37. True               
38. True                
39. True                 
40. True                 
41. True