(b) OxygenAir contains 20.95% of oxygen.
Air is made up of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and other gases in meager amounts.
Question 7 Which of the following is not a greenhouse gas? a) Carbon dioxide b) Sulphur dioxide c) Methane d) Nitrogen
One of the examples of radiation pollutants is
(a) Sulphur dioxide
(b) Ozone
(c) Iodine - 131
(d) Discarded fused electric bulbs