Ozone:
A) protects life on Earth by filtering harmful UV radiation from sunlight.
B) is rapidly depleting for reasons scientists do not yet fully understand.
C) is concentrated in the mesosphere.
D) is considered beneficial at the surface of the Earth.

Question

Quizplus · Accepted Answer

Ozone is a gas that exists in the Earth's atmosphere and is vital for protecting life on Earth by filtering out harmful UV radiation from sunlight. Ozone depletion is a concern, but it is not rapidly depleting for reasons scientists do not yet fully understand. Ozone is not concentrated in the mesosphere, as the concentration is highest in the "ozone layer" of the stratosphere. While ozone can be harmful to breathe at high concentrations, it is considered beneficial at the surface of the Earth as it can reduce pollution levels.