GED Science Practice Test – Prep, Questions & Study Guide

The primary role of ozone in the atmosphere is to protect against ultraviolet radiation. Ozone is concentrated in the stratosphere, forming the ozone layer, which absorbs the majority of the sun's harmful UV radiation. This protective shield is crucial for life on Earth, as excessive exposure to UV radiation can lead to health issues such as skin cancer, cataracts, and other serious biological effects.

The other options do not accurately represent the function of ozone in the atmosphere. While studying fossil organisms and destroying harmful microorganisms in food are important scientific and health-related activities, they do not involve ozone. Additionally, the mention of carrying explosive charge in a missile pertains to military technology and has no relevance to the role of ozone in environmental protection.