61. Climate includes
62. An example of nitrogen fixing bacteria in the soil
63. In a food chain of grassland ecosystem the top consumers are
64. The algal booin often releases __________ in water
65. The first protected area in India is ____________
66. Centre of Modern nuclear technology in India
67. The north-facing side of a hill in a mountainous region in the US tends to:
68. What scale is useful to record the force of wind ?
69. Organisms which are predominantly found living on, in or near bed sediments of rivers or lakes are known as
70. Unleaded petrol contains __________ which are known as carcinogenic compounds
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