101. Which country contains about 50% of the world's coal resources?
102. What is Carcinogen?
103. The Term Smog was introduced in 1905 by
104. The gas that absorbs most of the harmful ultraviolet radiation in the stratosphere:
105. Atmospheric ozone layer which protect us from UV-B and C is getting depleted most by addition of
106. Which of the following green house gases trap more heat?
107. The most abundant gas in the stratosphere is:
108. Acid rain mainly result from
109. Animals that feed only on plants are called
110. The first trophic level in a food chain
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