Which of the following is not an air pollutant?
(a) Sulphur dioxide
(b) Sewage
(c) CFCs
(d) SPM
Name one source and one harmful effect of each of the following air pollutants :
(b) Nitrogen oxides
(c) Carbon monoxide
(d) Chlorofluorocarbons (CFCs)
Which of the following air pollutant reduces the oxygen-carrying capacity of blood to a large extent?
(a) carbon dioxide
(b) nitrogen monoxide
(c) carbon monoxide
(d) sulphur dioxide
Which of the following air pollutant is capable of preventing photosynthesis in plants?
(a) CFCs
(b) nitrogen oxide
(c) dust
(d) carbon monoxide
Which of the following is usually not a water pollutant?
(a) sewage
(b) fertiliser
(c) fly ash
(d) pesticide