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You want to buy a house. Would you like to buy a house having windows but no ventilators? Explain your answer.

NCERT Solutions for Class 7th Science Chapter 8 Winds, Storms and Cyclones Page 92 Exercise Question 4


A house having windows but no ventilators should not be bought. This is because warm air is lighter than cold air and therefore, it goes up. This warm air can go outside the house mostly through ventilators. If there are no ventilators, then the warm air cannot go outside easily.
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