Why is stratospheric ozone loss a concern?
A) Stratospheric ozone is a major greenhouse gas; its loss will contribute to the cooling of the planet.
B) Stratospheric ozone absorbs harmful ultraviolet radiation (UVB and UVC).
C) Stratospheric ozone is a component of photochemical smog.
D) Stratospheric ozone contributes to the brilliant auroras.

Question

Quizplus · Accepted Answer

Stratospheric ozone absorbs harmful ultraviolet radiation (UVB and UVC), which can cause skin cancer, cataracts, and other health problems in humans and animals. When the ozone layer is depleted, more UV radiation can reach the Earth's surface, leading to increased risks to human health and damage to ecosystems.

Answer: C 
 Stratospheric ozone is not a component of photochemical smog. Photochemical smog is caused by chemical reactions between pollutants and sunlight, leading to the formation of ground-level ozone and other harmful compounds.

Answer: A and D 
 Stratospheric ozone is not a major greenhouse gas; its loss will not contribute to the cooling of the planet. However, it does contribute to the formation of brilliant auroras in the polar regions.

Why Is Stratospheric Ozone Loss a Concern