Multiple choice general knowledge Which is the chemical that destroys Ozone molecules O3 carbon monooxide chloro fluoro carbon sulphur Di-oxide Reveal answer Fill a bubble to check yourself C Correct answer Explanation Chlorofluorocarbons (CFCs) are chemicals that destroy ozone molecules in the stratosphere, causing ozone layer depletion. Options A (O3 - ozone itself), B (carbon monoxide), and D (sulphur dioxide) are not the primary ozone-destroying chemicals.