Environmentalhard · Past Paper
Photochemical smog is primarily composed of ozone and:
ASulfur dioxide
BPAN (Peroxyacetyl nitrate)
CAmmonia
DCarbon monoxide
✓ Correct Answer: B — PAN (Peroxyacetyl nitrate)
Photochemical smog (Los Angeles smog) is formed by sunlight reacting with nitrogen oxides and volatile organic compounds, creating PAN.
Share this question
More from Environmental
- The increase in the concentration of toxic substances in the tissues of organisms at higher levels in a food chain is called:
- The increase in the Earth's average surface temperature due to human activities is known as:
- Which gas is produced due to incomplete combustion of fuels and is highly poisonous?
- What is the pH level typically associated with acid rain?
- Which of these has the highest albedo?