Which gas helps in cooling in refrigerators?
Which gas helps in cooling in refrigerators?
کونسی گیس فریج میں ٹھنڈا کرنے میں مدد کرتی ہے؟
Explanation
Tetrafluoroethane (HFC-134a) is commonly used in modern refrigerators.
Unlike Freon, it does not deplete the ozone layer.
