Questions
Ventilators are provided at the top of room:
a
to bring oxygen for breathing
b
so that sunlight may enter the room
c
to maintain convection currents to keep the air fresh in the room
d
to provide an outlet for carbon dioxide
detailed solution
Correct option is C
To send hot air out of the room as it reaches to top of the room being lighter ,ventilators are provided.Talk to our academic expert!
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