What role does ozone play in relation to UV rays?

• A. It creates UV rays
• B. It reflects UV rays back into space
• C. It absorbs UV rays, preventing them from reaching the earth
• D. It enhances the effects of UV rays

Answer: (C)

Ozone plays a crucial role in protecting the Earth from harmful ultraviolet (UV) radiation emitted by the sun. Specifically, ozone in the stratosphere forms the ozone layer, which effectively absorbs the majority of the sun's harmful UV radiation. This absorption is vital because excessive exposure to UV rays can lead to various health issues, including skin cancer and eye damage, as well as environmental impacts like damage to crops and marine ecosystems.

In this context, the function of the ozone layer as a protector demonstrates its importance in maintaining life on Earth by filtering out the most dangerous UV radiation. The other options reflect misconceptions about the role of ozone. It does not create UV rays, nor does it reflect them back into space; rather, its primary function is to absorb UV rays. The statement that it enhances the effects of UV rays also misrepresents ozone's protective role, as its purpose is to mitigate the harmful effects rather than amplify them.