Which of the following chemicals is responsible for the depletion of the ozone layer in the atmosphere?
Chlorofluorocarbons or CFCs, are the chemicals primarily responsible for the depletion of the ozone layer. These synthetic compounds were once widely used in refrigeration, air conditioning and aerosol sprays. When released, they migrate to the stratosphere, where solar radiation breaks them down, releasing chlorine atoms that aggressively destroy ozone molecules in a repetitive and highly damaging chemical chain reaction. ANSWER: (B) Chlorofluorocarbons
Share
The primary culprit behind ozone depletion is a group of chemicals known as chlorofluorocarbons. These substances are remarkably stable in the lower atmosphere, allowing them to eventually drift upward into the stratosphere. Once there, intense ultraviolet light breaks the chemical bonds, releasing highly reactive chlorine atoms. A single chlorine atom can destroy thousands of ozone molecules before it is finally removed from the atmosphere. This process thins the ozone layer, reducing its ability to protect life from solar radiation. Although the Montreal Protocol has phased out most CFC production, their long atmospheric lifespan means recovery is slow.
Master SSC Static GK and Current Affairs with Competitive Exam Preparation TA Exam. Review mistakes and boost your score today.
Download the app now!
Android: https://play.google.com/store/apps/details?id=com.ta.exam
iOS: https://apps.apple.com/app/id6759824444