Q1
What is a common air pollutant?
ACarbon monoxide
BOnly oxygen
COnly nitrogen
DOnly water vapour
ICSEClass 9 (ICSE)ChemistryCh 8 · Topic 2
Practice and Revision - Atmospheric Pollution
Let us practise and revise what we learned about atmospheric pollution. Atmospheric pollution involves harmful substances released into the
Core concept
Common air pollutants include carbon monoxide, sulfur dioxide, nitrogen oxides, and particulate matter, mainly from vehicles and industries.
How it works
Air pollution can cause respiratory problems, acid rain (from sulfur and nitrogen oxides), and contribute to global warming through greenhouse gases.
Why it matters
The greenhouse effect, intensified by pollutants like carbon dioxide and methane, traps heat and contributes to climate change.
Key detail
Reducing air pollution requires measures like using cleaner fuels, promoting public transport, and enforcing emission regulations for industries and vehicles.
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Quick notes
• Common pollutants: CO, SO2, NOx, particulate matter.
• Sources: mainly vehicles and industries.
• Air pollution causes respiratory problems.
• It also causes acid rain from sulfur/nitrogen oxides.
• It contributes to global warming via greenhouse gases.
• CO2 and methane intensify the greenhouse effect.
• This contributes to climate change.
• Solutions: cleaner fuels, public transport, emission regulations.