Explain why ventilaters were provided close to roof of a house
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because warm air Rises up and cool air sinks down so ventilators are placed near the roof so that the hot air could escape and they would only cold air
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To provide fresh air to come in and hot and bad air to go to of the room because hot air is lighter and therefore goes up and escapes from ventilators and cool air from the atmosphere come inside the room because in room there is low pressure when hot air escapes so it enters the room through ventilators.
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