61. Largest reptile in the world
62. The movement "Beej Bachao Andolan" was aimed for the conservation of _______
63. A dim, "watery" sun visible through a gray sheet-like cloud layer is often a good indication of ____ clouds.
64. The source of energy in an ecosystem is
65. Which one of the following problems is not created by noise pollution?
66. In grazer food chain the living plants are directly
67. During the course of a year, the sun will disappear from view near the North Pole on what date?
68. _______ trees shed their leaves during winter and hot summer.
69. Average total rainfall is 100 - 150 cm in __________ , located in Australia, South America and Africa.
70. Which one is nature's cleaner?
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