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16. Water : A Precious Resource
Home · Class 7 · Chemistry · NCERT - Exemplar Science · 16. Water : A Precious Resource
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Q18 of 25 Page 86

How can you observe the three forms of water in (i) nature and (ii) at home?

(i) nature: The solid, liquid and gaseous form of water can be observed in nature as snow, lake water and water vapour present in the atmosphere.

(ii) at home: The solid, liquid and gaseous form of water can be observed in the home as ice, water in a bottle and water vapour from a kettle.


More from this chapter

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16

Fill in the blanks and complete the story selecting words from the box given here.

cold, demand, leaders, dry, hot, scarcity, workers,


wet, oceans, harvesting, rivers


Rajasthan is a _________ and dry place. The challenge of natural _______ of water was met by a successful experiment. A band of social ________ had transformed a _________ area into a green place. They have revived five dried-up ________ by constructing water ___________ structures.

17

Place the following statements in a proper order to form a meaningful paragraph.

(a) Which in turn decreases the seepage of rainwater into the ground.


(b) This decreases the open areas like park, and playgrounds.


(c) Increasing population create demand for construction of houses, shops, offices, roads and pavements.


(d) This results in depletion of water table and creates scarcity of more water.

19

Complete the given table


20

Match Column I with Column II


Questions · 25
16. Water : A Precious Resource
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