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Tick (“) the correct answers:, 1 : is present all around us., fa) Water () (6) Air Ayo Ice, , , , 2 What does air contain?, , @ oxygen a (b) carbon dioxide C) (c) both of these, 3. About 70% of our body weight is, , fa) air. a (b) water. SP (©) gas., , WATER CYCLE, in nature, water is found in three states— :, * The water in lakes, ponds, rivers and seas is heated by the sun. Du:, , ‘, , *, , heating, water changes into water vapour. Thic ic callad exeae.- ese.