The main sources of CO2 gas emission are our everyday activities such as…………
a) cooking
b) baking
c) both a & b
d) none of these
The main sources of oxides of nitrogen are…
a) jet airplanes
b) furnaces
c) industrial activities
d) all of these
The main sources of sulphur oxides are burning of fossil fluel such as…………..
a) coal
b) oil
c) natural gas
d) all of these
About………of total sulphur oxide pollution is caused by man-made sources.
a) 32%
b) 33%
c) 34%
d) 35%
VOCs such as methane etc. are produced wherever there are…………..
a) fossil fuels burning
b) mining
c) extraction
d) all of these
Chlorofluorocarbons are a group of compounds, which contain elements except…
a) carbon
b) chlorine
c) fluorine
d) sodium
