Ventilators are provided near the ceiling of the room because (a)the exhaled warmer air rises up and goes out (b)these provide cross ventilation in the room (c)these provide some sunlight in the room (d)these do not look nice in the lower part
option B. Ventilators are supplied close to ceilings withinside the rooms of our homes due to the fact the air we breathe out is heat and rises out of the room thru the ventilators. Cool sparkling air rushes into the room thru the doorways and windows.