يعتبر الأكسجين الغاز الأكثر أهمية لبقاء الإنسان. Human existence completely relies on this gas content in the atmosphere. Hence the depletion of oxygen gas should be taken seriously. There are various things that are reason behind the deficiency of oxygen gas like pollution, deforestation, asphyxiation and many more. The deficiency of oxygen can be very hazardous to all living beings.