Q: What done ozone help protect against?


Read this paragraph and choose the correct option from the provided answers:

Ozone (O 3 ) depletion in the atmosphere is of significant concern. This gas serves as a protection against the ultraviolet rays of the sun. Ozone is naturally depleted in addition to the depletion caused by human-made chemicals. The depletion reaction is a two-step process:.

 Choices:

- gamma rays

- x-rays

- helium rays

- ultraviolet rays


A:
ultraviolet rays