________ gas is not a constituent of air.
Hydrogen
Oxygen
Helium
Sulphur dioxide
Sulphur dioxide gas is a pollutant and is not a constituent of air.
The constituent of polluted air which contributes in producing acid rain is:
(a) nitrogen
(b) sulphur dioxide
(c) oxygen
(d) argon
Which of the following is not a greenhouse gas?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Methane
(d) Nitrogen
While researching on various air pollutants, Ravi came across gas 'X'. He concluded that 'X' is a poisonous gas and has a strong smell of rotten eggs. Which among the following can be the gas 'X'?