WAEC Chemistry 2011 Objective — Question 49
Question 49 of 50 from the West African Examinations Council (WAEC) Chemistry 2011 Objective paper, with the correct answer and a full explanation.
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Which of the following substances is mainly responsible for the depletion of the ozone layer?
- A. A. ChlorofluorocarbonCorrect
- B. B. Carbon (IV) oxide
- C. C. Nitrogen
- D. D. Oxygen
Explanation
Chlorofluorocarbons (CFCs) are the main substances responsible for the depletion of the ozone layer, which protects the earth from receiving too much UV radiation.
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