Class 6 - Air around usVersion en ligne Multiple choice questions par Contact UberScool 1 Which of the below activities do not show the presence of air Choose one or more answers a Rustling of leaves b Ticking of a clock c Kite flying 2 The layer of air around us is called ______ a Atmoshphere b Biosphere c Hydrosphere 3 Air is a mixture of many _____ a solids b liquids c gases 4 _____ supports burning a Oxygen b Nitrogen c Carbon-di -oxide 5 _____ is a major component of air a Oxygen b Nitrogen c Carbon-di -oxide 6 The component of air used by green plants to make their food is ______ a Oxygen b Nitrogen c Carbon-di -oxide 7 Identify this a Windmill b Fan c Windtower 8 Aquatic animals use ______ air in water for respiration a diluted b dissolved c filtered 9 As you go up, above the sea-level the atmospheric pressure _____ a increases b decreases c no change 10 Plants and animals use _____ for respiration a nitrogen b carbon-di-oxide c oxygen
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