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Questions:

1. Which element is present in the largest percentage in biosphere?
2. Pyramid of energy in Pond Ecosystem is always upright.
3. Kanha Biosphere Reserve is located in Madhya Pradesh.
4. Which source of energy is made from excretory material of animals?
5. The biggest nuclear accident occurred in Chernobyl.
6. What is the statement about the totality of milieu factors of an organism?
7. Which food chain is correct in terms of energy flow?
8. Which of the following states is correctly matched with a biosphere?
9. What is the most ancient occupation in the world?
10. Which gas is harmful to the Taj Mahal?
11. Percentage of which gas is highest in the atmosphere?
12. What is an example of an artificial ecosystem?
13. When is World Conservation Day celebrated?
14. Where was India's first atomic energy power plant established?
15. What causes acid rain?
16. What percentage of forest-covered land exists in India?
17. Which element is radioactive?
18. What is India's national bird?
19. What is the Green Revolution related to?
20. Which river is polluted by waste from Delhi and Agra?
21. What is the amount of oxygen in the atmosphere?
22. Who first used the term 'Ecosystem'?
23. Why is CNG preferred over LPG?
24. Which state has the lowest percentage of forests?
25. What causes fluorosis disease?
26. Which month is Environmental Awareness Month in India?
27. What does not act as a nutrient in an ecosystem?
28. Which national park is correctly matched with its location?
29. What is known as the poor man's timber?
30. What year did the Tsunami disaster occur in India?
31. What percentage of Earth's surface is covered by oceans?
32. Who described an ecosystem as the integration of all living and non-living factors?
33. Which one is not a national park?
34. Who is regarded as the 'Father of Green Revolution'?
35. What is the noise level produced by automobiles and household machines?
36. Which is the hottest planet in the solar system?
37. What process uses carbon dioxide?
38. Where is Corbett National Park located?
39. Where is bauxite mainly found in India?
40. What causes bone cancer?
41. India has become self-dependent due to the Green Revolution in foodgrain production.
42. Which component does not form the structure of the ecosystem?
43. In which sea are fishes not found?
44. Which tree has medicinal importance?
45. Which gas is harmful and useful both for life on earth?
46. What is India's national water animal?
47. What is the largest ecosystem on Earth?
48. What is a popular tree of the Gangetic plain?
49. Where is the origin place of the potato?
50. Which atomic radiation is externally harmful to the body?
51. What envelops gases and vapors around the Earth?
52. In an ecosystem, what role does a snake play?
53. Where in India are tigers found in maximum numbers?
54. Which tree is incorrectly matched with its forest type?
55. Where is the ozone layer in the atmosphere found?
56. What causes environmental problems at various levels?
57. What does a natural ecosystem depend upon?
58. Who first used the word 'Biodiversity'?
59. What book on water conservation has been written in India?
60. What is DDT categorized as?
61. What is the full form of NGT?
62. Which mineral is used in dental treatment?
63. Where is Periyar Sanctuary located?
64. Where is IARI situated?
65. What does a Nephelometer measure?
66. Where was the world's first AIDS patient identified?
67. How do green plants get energy from the sun?
68. What is the fastest-running land animal?
69. Which is the largest ocean?
70. What is referred to as BOD?
71. When is Tobacco Opposition Day observed?
72. Why is nitrogen important?
73. Which place is correctly matched with its species?
74. What is the cleanest source of power?
75. What is the full form of SPCB?
76. When is World Health Day celebrated?
77. What is the original source of almost all energy in ecosystems?
78. What is Cuscuta categorized as?
79. Which country is the largest producer of natural gas?
80. What does pollution affect?
81. Where was the first World Earth Summit organized?
82. Where do living organisms derive their energy and nutrients from?
83. Which is not an insect?
84. Where is India's Forest Research Institute located?
85. What is air categorized as?
86. When is World AIDS Day?
87. Which one is a primary consumer?
88. How many nuclear power stations are present in India?
89. What medium allows sound waves to travel?
90. What year was the Disaster Management Act passed in India?
91. What is the pea plant an example of?
92. What does the Giant Panda symbolize?
93. Which state is severely affected by landslides?
94. How are jaundice and dysentery transmitted?
95. Where is the National Environmental Engineering Research Institute located?
96. What role do secondary consumers play?
97. Which species is correctly matched with its location?
98. Which river is known as the saline river of India?
99. Which country is mainly responsible for the ozone layer hole?