2011 · Q93
Which of the following processes would explain ozone losses in the atmosphere?
- 1CFCs and UV radiation.
- 2Long winter circumpolar winds to form ice crystals.
- 3Singlet oxygen atom and chlorine monoxide.
Select the correct answer using the codes given below.
general-sciencechemistry
- A1, 2 and 3
- B2 and 3
- C1 and 2
- D1 and 3
Explanation
Ozone depletion is driven by CFCs under UV radiation and by polar stratospheric cloud formation in the long winter circumpolar vortex, so statements 1 and 2 are correct.