engineering chemistry MCQ #3086

What is the main cause of ozone layer depletion?

engineering chemistry MCQ #3086

  1. Question 1

    Q1. What is the main cause of ozone layer depletion?

    • A) CO2 emissions
    • B) CFC emissions
    • C) CH4 emissions
    • D) N2O emissions

    Answer: CFC emissions

    Explanation: CFCs (chlorofluorocarbons) release chlorine atoms, which catalytically destroy ozone molecules, causing depletion.