When was the first ozone hole discovered?A1970B1985C1980D1990Answer: B. 1985 Read Explanation: Ozone depletionIt is from a scientific article published by the scientist Joseph Farman in 1985 in the 'Nature' Magazine that the dreadful influence of ozone depletion got public attention. International Geophysical year was celebrated in the year 1957. Read more in App