Question

why are ventilators in houses provided at the top of walls?

Answer 1

usually hot air is lighter than cool air. so hot air rises up. to remove hot air from the room, ventilators in houses are provided at the top of the walls

Answer 2

Because when the climate gets warm
The air in the room also becomes warmer

The warm air being lighter goes upwards due to its weight

Thus the ventilators are placed upwards to to expel out the warm air as soon as it reaches at the top

Please mark this answer The Brainliest If it helps you