The gas that is most useful in protecting humans against solar radiation is?
A
chlorine
B
ozone
C
carbon (IV) oxide
D
hydrogen sulphide
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
The ozone layer in the stratosphere absorbs a portion of the radiation from the sun, preventing it from reaching the planet's surface.
Most importantly, it absorbs the portion of UV light called UVB.
Source: WAEC / JAMB / NECO Classroom Archive (Record #4340)