Question

Ozone hole over Antarctica was first detected by

• A. Molina and Rowland
• B. Farman et al
• C. Augus
• D. Molina and Molina

Answer 1

The correct option is B Farman et al

The discovery of the ozone hole over Antarctica was done by British Antarctic Survey Scientist Farman, Gardiner and Shanklin and reported in the Nature journal in May 1985. The ozone hole is defined as the area in the atmosphere where the value of the ozone is less than 220 DU. Paul Crutzen, Mario Molina and Sherwood Rowland gave the observation of CFCs in degradation of the ozone.

Hence, the correct answer is 'Farman et al'.