1. In which year noise was also included as an air pollutant?
Correct : B. 1987
2. Sound waves of_____ decibels causes damage to eardrum or permanently impair hearing?
Correct : A. 150db or more
3. Which type of pollution causes altered breathing pattern, increased heartbeats and sleeplessness?
Correct : A. Noise pollution
4. According to 1990s survey which city ranked 4th among the 41 most polluted cities of the world?
Correct : B. Delhi
5. Name the metropolitan city leading the country in its levels of air pollution.
Correct : B. Delhi
6. Which is the drastic change seen in Delhi public transport after 2002?
Correct : A. All the buses run by CNG
7. Which is correct according to EURO II norms?
Correct : A. Sulphur can be controlled at 350ppm in diesel and 150ppm in petrol
8. Which harmless gases are produced by smokes stakes of thermal power plant and smelters?
Correct : A. N2, O2
9. For reducing vehicular pollution which measures are taken by Delhi government?
Correct : D. All of these
10. In which cities Bharat stage II is applied from 1st april’2005?
Correct : D. Mumbai,Pune,Bangalore,Surat,Ahmedabad
11. A substantial fall in the level of which gases have been found between1997 to2005 in Delhi?
Correct : A. CO2,SO2
12. To safeguard our water resource the amendment was passed in the year.
Correct : A. 1974
13. Which chemical of petrol inactivates the catalysts of filter for reducing emission of poisonous gases?
Correct : A. Lead
14. Which colloidal material is seen in domestic sewage?
Correct : B. Fecal material and bacteria
15. What happens to the O2 level and BOD of river water at sewage discharge point?
Correct : A. Sharp decline in O2 level and rise in BOD
16. What is the reason for mortality of fish in water body?
Correct : A. Biodegradation of organic matter by microbes
17. Which plant is known as ‘Terror of Bengal’?
Correct : D. Eichhornia
18. Which is world’s most problematic aquatic weed?
Correct : D. Eichhornia
19. Which compound used in refrigerator is a source of chlorine
Correct : A. Freon
20. What is biological magnification of DDT in large size fish eating birds?
Correct : B. 25ppm
21. By which method large number of particles of pollutants are separated?
Correct : C. Electrostatic precipitator
22. Which of the following is not responsible for pollution?
Correct : D. Solar energy
23. The population of eagles and hawks is declining because of,
Correct : C. Harmful effects of pesticides
24. BOD of a river was found to be very low, this means the water
Correct : A. Was clean
25. More pollution loads in lake, no self purification because.
Correct : A. There is no O2 to sustain microbial activity
26. Warmth on the surface of the earth is due to
Correct : B. Green house effect
27. Thinning of eggshell and their premature breaking is due to
Correct : D. Biological magnification
28. Aging of lake is accelerated by
Correct : A. Cultural Eutrophication
29. Which chemicals increase growth of aquatic organism?
Correct : A. Nitrogen and phosphoru
30. Arrange the following statements with reference to accelerated eutrophication in proper manner.
(p)Silt and debris pile up at the bottom of the lake
(q)Marsh plants take roots in the shallows begin to fill the lake basin
(r)Introduction of large number of nitrogen and phosphate in the pond
(s)Encouragement of growth of aquatic organisms.
Correct : C. r,s,p,q
31. Give full form of FOAM.
Correct : A. Friends of Arcata Marsh
32. In which cities Ecosan toilets are working?
Correct : A. Kerala and Srilanka
33. Recycling of e-waste is done in developing countries like…
Correct : A. China, India, Pakistan
34. Name the metals recovered during recycling process of e-waste.
Correct : A. Gold, Nickle, Copper, Silicon
35. Increase in the concentration of a nonbiodegradable substance of various tropic level is called
Correct : D. Biological magnification
36. Deforestation results in
Correct : D. All of these
37. Chipko movement is associated with prevention of
Correct : B. Cutting of trees
38. Jhum refers to.
Correct : C. Shifting cultivation
39. Ultraviolet radiation from sunlight causes a reaction that produces
Correct : D. Ozone
40. The biological amplification of DDT in various tropic levels is known as
Correct : D. Biological magnification
41. BOD is related to
Correct : C. Organic pollutants
42. CFC’s splits up in stratosphere to release chlorine by the action of..
Correct : B. UVB
43. Noise was recognized as air pollutant through amendment of
Correct : A. Environment act
44. If there was no CO2 in the earth’s atmosphere, the temperature of earth’s surface would be. CBSE1995
Correct : C. Less than present
45. With the help of Electrostatic precipitators how much particulate pollutants can be removed?
Correct : B. 99%
46. Enrichment of a water body with organic waste results in sudden algal bloom. This phenomenon is known as
Correct : A. Eutrophication
47. Which of the following is mismatched?
Correct : C. Solar energy – Green house effect
48. Which of the following is not causing pollution?
Correct : D. Hydroelectric power plant
49. Soil conservation can be best achieved by having …
Correct : B. Good plant cover
50. Biological treatment of water pollution can be done by
Correct : B. Phytoplankton
51. Eichornia is a…
Correct : B. Water plant
52. Who created the Haryana Welfare Club?
Correct : A. Ramesh Dagar
53. What is the major problem of using nuclear energy?
Correct : D. Both A and C
54. Which is the recommended depth to burry nuclear waste?
Correct : A. 500mt
55. Name the natural phenomenon responsible for heating of earth’s surface and atmosphere?
Correct : B. Green house effect
56. What is the average temperature of earth maintained by green house effect?
Correct : A. 15°c
57. In which form earth ‘s surface reemits heat?
Correct : D. rays
58. Which gases are commonly known as green house gases?
Correct : A. CO2 & CH4
59. What is correct for the region labeled as a,b,c and d?
Correct : A. a- CO2 60% ,b- CH4 20% , c- CFC 14% ,d-N2O 6%
60. .In the given chart of biological magnification what does a and b indicate? Fish eating birds-DDT -25ppm
Correct : B. a= Zooplanktons , b=large fish Small fish-DDT - 0.5ppm
61. Name the disease caused by water pollution?
Correct : B. Typhoid
62. Which disease is not caused by water pollution?
Correct : C. Tuberculosis
63. Which is the main pollutant content of domestic sewage?
Correct : A. Biodegradable organic matter
64. What I the result of El Nino Effect?
Correct : D. All of these
65. What are the reasons for soil erosion and desertification?
Correct : D. All of these
66. Heavy metals can be defined as elements with density…
Correct : A. >5g/cm3
67. What should be the forest cover recommended by National forest policy1988?
Correct : B. 33% in plains and 67% in hills
68. Name the community known for its peaceful coexistence with nature?
Correct : A. Bishnoi
69. Bad ozone is formed in ——— layer of atmosphere ?
Correct : A. Troposphere
70. What is snow blindness?
Correct : C. Inflammation of cornea
71. Which atoms are released by the action of UV rays on CFC?
Correct : D. Cl
72. In which part of atmosphere degradation of ozone takes place?
Correct : B. Stratosphere
73. Measurement of ozone layer is done by ——— unit.
Correct : A. Du
74. Formation of ozone gas in upper layer depends on
Correct : A. U V ray
75. In the water of flooded river what type of change is seen in BOD?
Correct : A. Increase
76. The death of fishes due to Eutrophication is because of
Correct : C. Decrease O2 content
77. When huge amount of sewage is dumped in a river the BOD will
Correct : A. Increase
78. The Montreal protocol was made effective from..
Correct : B. 1989
79. What do you understand by greenhouse effect?
Correct : C. Increase in temperature due to increase in CO2 concentration of the atmosphere
80. In which sphere of atmosphere the ozone layer is seen?
Correct : B. Stratosphere
81. The release of phosphates and nitrates in lakes and ponds leads to
Correct : D. Both B and C
82. Deforestation has an alarming effect on
Correct : A. Soil erosion
83. Amruta Devi Bishnoi Wild life Protection award has recently instituted for
Correct : A. Extraordinary courage and dedication in protecting wildlife
84. Which is the main factor of water pollution?
Correct : D. None of these
85. Which one of these has highest levels of DDT deposition?
Correct : C. Sea gull, Eagle
86. Exhaust of motor vehicles produces pollutants like
Correct : D. All of these
87. The stress reaction is caused by
Correct : D. Noise pollution
88. Deforestation may reduce the chances of…. (CBSE1990)
Correct : A. Rain fall
89. Most severe environmental hazard to mankind is due to…. (DPMT1986)
Correct : B. Radioactive pollution
90. Which is biodegradable pollutant?
Correct : C. Domestic sewage
91. According to government of India’s new policy what should be the level of aromatic hydrocarbons of the concerned fuel?
Correct : C. 42%
92. What would have been the temperature of the earth without green house effect?
Correct : C. -18°C
93. Which is the native place of Bishnoi community?
Correct : B. Jodhpur
94. Formation of ozone hole is maximum over. .CBSE1997
Correct : A. Antarctica
95. The main problem arose due to green revolution is…
Correct : D. Both B and C
96. What is importance of catalytic converter?
Correct : B. They reduces emission of harmful gases
97. With the help of ____ SO2 is removed from the industrial exhaust?
Correct : C. Scrubber
98. How much forest area is lost in tropics and temperate regions respectively?
Correct : A. 40%, 1%
99. What is the rise in the temperature of earth since last three decades?