जॉइन Examsbookउत्तर : 1. "Tibet"
Second Ozone Hole was detected over5
प्र: Second Ozone Hole was detected over
- 1Tibettrue
- 2Swedenfalse
- 3Northern hemisoherefalse
- 4Antarcticafalse
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उत्तर : 1. "Tibet"
व्याख्या :
Answer: A) Tibet Explanation: Second ozone hole was detected over Tibet in the year 2006. Ozone is a form of oxygen, acts as a high-altitude atmospheric screen against cancer-causing ultraviolet light. The main source of these halogens in the stratosphere is photodissociation of man made halocarbon refrigerants, solvents, propellants and CFC's.