In which year did the amount of ozone begin to drop sharply in the atmosphere?
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Correct answer: (B) 1980
Correct answer: (B) 1980
This is question 15 of RRB JE CBT-1 PYQ 18 Dec 2024, Shift 1 (9:00 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.