Question

londons \killer fog\ was ultimately the result of ___.
a. forest fires
b. automobiles
c. dirty coal
d. heating oil
please select the best answer from the choices provided
o a
o b
o c
o d

Explanation:

The London "killer fog" in 1952 was mainly due to the burning of dirty coal. Coal - burning released a large amount of pollutants like sulfur dioxide and particulate matter into the air, which combined with fog to form a deadly smog.

Answer:

C. dirty coal