Ozone absorbs ultraviolet light. Nitrogen reflects ultraviolet light. Water vapor scatters ultraviolet light. Carbon dioxide blocks ultraviolet light.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What process in the atmosphere protects people from the ultraviolet rays in sunlight?
Possibilities:
- Ozone absorbs ultraviolet light.
- Nitrogen reflects ultraviolet light.
- Water vapor scatters ultraviolet light.
- Carbon dioxide blocks ultraviolet light.

Ozone absorbs ultraviolet light.