What does ozone in the stratosphere consist of?

Ozone in the stratosphere is made up of molecules that consist of three oxygen atoms. This specific configuration gives ozone (O3) distinct properties compared to molecular oxygen (O2), which consists of two oxygen atoms. The three-atom structure of ozone plays a critical role in absorbing harmful ultraviolet (UV) radiation from the sun, thus protecting living organisms on Earth. This absorption is vital for preventing skin cancer and other UV-related health issues.

The other options do not accurately describe the composition of stratospheric ozone. Ozone is not composed of two oxygen atoms, as that would represent regular oxygen gas. Additionally, it is not made up of radioactive particles or pollutants that have migrated from ground level. Understanding the correct structure of ozone is essential for grasping its significance in atmospheric sciences and environmental protection.