Question

Hey friends/army
Here is your question...

Why are ventilators placed on the top of the wall??

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give me correct answer....​

Answer 1

Answer:

ventilators are always pleased at top of the wall because as we know hot air is lighter than cool air ,so as the air in the room become hot it rises up and go out through the ventilators and the cool air comes from the window again when it becomes hot it go out through the ventilators and this process will be continued

Answer 2

Answer:

as we know hot air are lighter than cold air, when hot moves up it goes out from the room through ventilator.

and cold air settled down this maintains the temperature of room

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