1) ……………. percentage of nitrogen is present in the air. a) 78.09% b) 74.08% c) 80.07% d) 76.63% 2) Tsunami in Indian Ocean took place in the Year ……………. a) 1990 b) 2004 c) 2005 d) 2008 3) The word tsunami is derived from ……………. language. a) Hindi b) French c) Japanese d) German 4) The example of surface water is ___________ . a) Artesian well b) Groundwater c) Subsurface water d) Lake 5) Event that occurs due to the failure of monsoons. a) Condensation b) Drought c) Evaporation d) Precipitation

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