Which of the following toxic gases was an important component of London's smoke fogs?
A)radon
B)sulphur dioxide
C)carbon monoxide
D)ozone

Question

Quizplus · Accepted Answer

Sulphur dioxide was an important component of London's smoke fogs as it was primarily emitted from the burning of coal. The fogs, combined with the high levels of sulphur dioxide, made for a deadly combination known as "London Smog".

Which of the Following Toxic Gases Was an Important Component