Quiznetik

Environmental Science | Set 2

1. Yellowing of Taj Mahal is an effect of

Correct : A. Acid rain

2. Identify the aftermaths of acid rain from the following

Correct : D. All of the above

3. Increase in concentration of toxic level in each trophic level is referred to as

Correct : B. Bio magnification

4. Pollutants that are easily manageable and decomposable in nature are called

Correct : A. Biodegradable pollutants

5. The supersonic jets cause air pollution by the thinning of

Correct : C. Ozone layer

6. Which of the following is the best indicator of SO2 pollution

Correct : C. Lichens

7. BOD stands for

Correct : B. Biological oxygen demand

8. A river with high BOD value means

Correct : A. Highly polluted

9. Which gas is responsible for ozone layer depletion around earth?

Correct : B. Chlorofluorocarbons

10. What is Kyoto Protocol?

Correct : A. It is an agreement among countries to take steps for reducing global warming.

11. Possible health effects of noise pollution includes

Correct : D. All of the above

12. Noise is measured by sound meter and the unit is

Correct : C. Decibel

13. Which of the following are major causes of land degradation?

Correct : C. Deforestation

14. The main components of photochemical smog is

Correct : D. All of the above

15. Which gas is responsible for the global warming?

Correct : B. Carbon dioxide

16. Which country has organized its cabinet meeting under the sea to drag attention of the world towards the Global Warming and its threats?

Correct : A. Maldives

17. Which of the following effect is responsible for Global Warming?

Correct : A. Greenhouse effect

18. Which of the following greenhouse gas is entirely anthropogenic in origin?

Correct : C. Carbon dioxide

19. Which of the following statements regarding the greenhouse effect has the lowest degree of certainty?

Correct : B. Global warming will result in an increase in the number of tropical storms

20. Which of the following is not a greenhouse gas?

Correct : C. Water vapor

21. The two major impacts expected as a result of rising global temperatures are

Correct : B. Regional climatic changes and a rise in sea level

22. How are humans making greenhouse gases of our own?

Correct : A. Burning fossil fuels

23. The solar radiation that bounces off the earth back towards the atmosphere is mostly

Correct : D. Infrared radiation

24. Things you can do to decrease global warming include

Correct : D. All of the above

25. Excess atmospheric carbon dioxide increases greenhouse effect as carbon dioxide

Correct : B. Is opaque to infrared rays

26. Which of the following is not a potential adverse effect of global warming?

Correct : D. An increase of UV-B radiation

27. Which of the following processes adds to the removal of carbon dioxide from the atmosphere?

Correct : B. Photosynthesis

28. Which is the only country who has not ratified the Kyoto Protocol yet?

Correct : A. United States

29. Ozone day is observed on

Correct : B. 16th September

30. Ozone layer is present in

Correct : D. Stratosphere

31. Which one of the following gases can deplete the ozone layer in the upper atmosphere?

Correct : C. Carbon tetrachloride

32. Peeling of Ozone umbrella, which protects us from UV rays, is caused by

Correct : B. CFCs

33. Formation of hole in Ozone is maximum over

Correct : C. Antarctica

34. Increasing skin cancer and high mutation rate are the result of

Correct : B. Ozone depletion

35. Which of the following statements about ozone is true?

Correct : C. It protects us from harmful UV radiations of sun

36. Thickness of ozone layer is measured in

Correct : B. Dobson unit

37. Chlorofluorocarbon releases a chemical harmful to ozone is

Correct : A. Chlorine

38. In the breakdown of the ozone layer, the ozone (O3) directly reacts with

Correct : B. Chlorine atoms

39. A population is a group of

Correct : B. Individuals in a species

40. The main cause of world population growth in 18th and 19th centuries was

Correct : C. Industrial revolution

41. What is most important factor for the success of animal population?

Correct : B. Adaptability

42. Human population growth is

Correct : C. J-shaped curve

43. The main factors contributing to the decline in death rate in 20th century were

Correct : B. Improved health care, sanitation and nutrition

44. The world population in 2000 was approximately

Correct : C. 6 billion

45. The average life expectancy around the world is currently

Correct : B. Increasing

46. Exponential growth in population occurs when there is

Correct : B. No environment resistance

47. The disease which wiped out 33% of population of Europe in the 12th and 13th centuries was

Correct : C. Plague

48. A human population is small, there is greater chance of

Correct : C. Genetic drift

49. Which of the following is a problem not associated with population growth?

Correct : D. None of these

50. Unrestricted reproductive capacity, in a population, is called

Correct : D. Biotic potential

51. The concept that “population increases geometrically while food supply increases arithmetically” was given by

Correct : D. Thomas Malthus

52. Population pyramids are useful to

Correct : D. Express age – sex distribution of a population

53. The carrying capacity of a population is determined by

Correct : D. Limiting resources

54. HIV is not likely to be transmitted by

Correct : D. Breast feeding

55. Today, the world’s number one problem is:

Correct : B. Population explosion

56. Population explosion has occurred in the last

Correct : D. 150 years

57. Study of trends in human population growth and prediction of future growth is called

Correct : A. Demography

58. One of the critical mechanism by which the environment controls population of species is

Correct : D. Control on death rate

59. If the rate of addition of new member’s increases with respect to the individual lost of the same population, then the graph obtained has

Correct : C. Exponential growth

60. The number of babies produced per thousand individuals is called

Correct : A. Natality

61. The zero population growth due to equal birth and death rates is called

Correct : D. Demographic transition

62. Demographic features of developing countries are

Correct : C. High fertility, falling mortality rate, rapid population growth and young age distribution

63. Density of a population (D) is

Correct : C. D = N(number) / S(space)

64. Each environment supports a limited population depending upon its

Correct : B. Carrying capacity

65. Group of interbreeding organisms found in a particular area is

Correct : A. Population

66. In India, human population has higher number of younger age group because of

Correct : B. Short life span and high birth rate

67. July 11 is

Correct : B. World Population Day

68. Number of births per 1000 is

Correct : D. Crude birth rate