1) A box is full of water, after a while the water is disappeared, How did the water got to vapour? a) Evaporated by evaporation b) Disappeared by Transpiration c) Evaporated by Condensation d) Ran away 2) Which gas is present in NATURE in the highest value? a) Biogas b) Eon c) Oxygen d) Nitrogen e) Methane f) Fluorine 3) Gas used by animals  a) CO⌵2 b) Oxygen c) Water d) Nitrogen 4) Which gas does not support combustion [Burning] a) Oxygen b) fluorine c) chlorine d) Water Vapour 5) Air is present a) Here b) Atmosphere c) Everywhere d) In Neptune

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