The significant thinning of the Earth’s protective stratospheric ozone layer, often referred to as the ‘ozone hole,’ was primarily attributed to the widespread use of what class of industrial synthetic chemicals in refrigerants, aerosol sprays, and cleaning solvents?

💡 Explanation:

Chlorofluorocarbons (CFCs) are chemicals that, when reaching the stratosphere, release chlorine atoms. These atoms act as powerful catalysts, breaking down ozone molecules (O3). The international effort to phase out CFC production led to the Montreal Protocol, often cited as a successful example of global environmental cooperation.