Environment - GK (PDF-1)


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1. Ozone layer is being depleted by --> Chloroflurocarbon

2. Ozone layer exists in --> Stratosphere

3. Almost 99% of clean air consists of two gases which are --> Nitrogen and Oxygen

4. Sound becomes hazardous noise pollution at decibels --> Above 80

5. Biosphere reserve project was initiated in India during --> 1986

6. Deforestation generally decreases --> Rainfall

7. In an ecosystem, bacteria are the --> Decomposers

8. Full form of COD is --> Chemical Oxygen Demand

9. In Atmosphere nitrogen consists of --> 78%

10. Full form of BOD is --> Biological Oxygen Demand

11. Full form of CTBT is --> Comprehensive Test Ban Treaty

12. What percentage of land area should remain covered by forest to maintain Ecological balance? --> 33%

13. Rapid growth of population at present time is due to --> Lack of awareness among people to check birth rate
14. Supersonic planes cause --> Noise pollution

15. World environment day is celebrated every year on --> June 5

16. With respect to environment science, full form of SPM is --> Suspended Particulate Matter
17. First International Conference on environment held on --> June,1972

18. Environmental Protection Act enacted on --> 1986

19. Human being can hear range of sound frequency between --> 20-20,000 Hertz

20. The disease "Itai Itai" is caused by --> Cadmium

21. Taj Mahal is threatened due to --> Sulphur dioxide

22. Minamata diseasse are first detected in --> Japan

23. Silviculture is the management of --> Forests

24. Syringes are examples of --> Biomedical wastes

25. Phytoplanktons are the members of --> Aquatic ecosystem

26. All species of ‘Lemur’ are endemic to which among the following places of the world? --> Madagascar

27. The Machia Biological Park is located in which state? --> Rajasthan

28. If waste materials contaminate the source of drinking water which of the following diseases will spread ?  --> Typhoid

29. Abiotic environment does not include --> Plants

30. The depletion in the Ozone layer is caused by --> chlorofluorocarbons
31. An animal that can tolerate the heat of the desert is --> camel

32. The increase in the concentration of CO2 in our environment in last fifty years; since 1960 is about --> 14%

33. Vermicomposting is done by --> worms

34. Air pollution is caused by --> Smoke

35. The group of organisms which convert light into food are called --> autotrophs

36. The three primary soil macronutrients are --> potassium, phosphorus and nitrogen
37. The concentration of which gas is highest in our environment?  --> Nitrogen

38. Air is composed of gases, water vapours and --> dust particles

39. A major in-stream use of water is for --> producing hydroelectric power

40. In our country the Van Mahotsav Day is observed on --> First of July

41. Plants are green because of the presence of a pigment called --> glucose

42. Lewis Hamilton is associated with --> Formula One Racing

43. ‘Kuna’ is the currency of which country? --> Croatia

44. Appy Fizz, the carbonated apple juice is product by --> Parle Agro

45. ‘Because You’re Worth It’ is the tagline of which company? --> L’Oreal
46. In context of space technology, what does abbreviation ‘PSLV’ stand for? --> Polar Satellite Launch Vehicle

47. Who is the current CEO of multinational technology company Apple Inc.? --> Tim Cook

48. Itanagar is the capital city of which North-Eastern state of India? --> Arunachal Pradesh

49. The famous Kedarnath temple is located in which state of India? --> Uttarakhand

50. Persistent high inflation combined with high unemployment and stagnant demand in a country’s economy is referred to as --> Stagflation

51. Every year, 2nd February is celebrated across the world as --> World Wetlands Day
52. The new Indian Currency Note of Rs. 2000/- denomination has an image of --> Mangalyaan

53. hemical group Halons are emitted in --> British Columbia

54. Annual ozone hole is located on continent --> Antarctica

55. Burning of fossil fuels --> increases greenhouse gases

56. Color of ozone molecule is --> blue

57. When chlorofluorocarbons are released in atmosphere, chlorine chemical destroys the --> ozone molecules

58. Methyl chloroform, carbon tetrachloride, hydro fluorocarbons and chlorofluorocarbons are mainly known as --> ozone depleting substances

59. Chemical released by chlorofluorocarbons that causes depletion of ozone layer in atmosphere is --> chlorine

60. Higher energy level and shorter wavelengths are features of --> ultraviolet radiation

61. Greenhouse gases which is present in very high quantity is --> carbon dioxide

62. Layer of atmosphere in which Ozone layer lies is --> stratosphere

63. Chemical substance used in industry for cold cleaning, adhesives and vapor degreasing is --> methyl chloroform

64. Gas molecules that absorb thermal infrared radiation and are present in large quantity to change climate system are known as --> greenhouse gases

65. Name of extremely effective firs extinguishing agent is --> halons

66. Name of protocol signed to reduce production of chlorofluorocarbons is --> Montreal Protocol

67. Height of ozone above surface of Earth is --> 15 to 30 km
68. Most serious group of chemicals emitted in British Columbia that causes depletion of ozone layer are --> halons

69. Lower energy level and longer wavelengths are features of --> infrared radiation

70. Wavelength of ultraviolet radiations is --> shorter

71. Layer which saves life from harmful effects of UV radiations is known as --> ozone layer

72. Number of atoms in ozone molecules are --> 3

73. Montreal protocol to reduce production of chlorofluorocarbons was assigned in --> 1987

74. Wavelength of infrared radiations is --> longer

75. Exchange of outgoing and incoming radiations that keep Earth warm is known as --> greenhouse effect

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