91. The formation of __________ is the most characteristic feature in upper course of a river
92. Which among the following is mobile in nature?
93. Infection of HIV is usually detected by which test
94. Which functional feeding groups are involved in the process of in-stream physical breakdown of coarse material into fine particulate organic matter?
95. When the air temperature is below freezing, the saturation vapour pressure over water is .
96. The dramatic increase in agricultural production that have been made possible by high yield miracle crops are called the
97. In the atmosphere, tiny solid or liquid suspended particles of various composition are called:
98. What is meant by GM foods?
99. Which of the following gas is present at a very high concentration in our environment?
100. _________ refers to the phenomenon in that the organisms are exclusively restricted to a given area.
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