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प्र: Second Ozone Hole was detected over

  • 1
    Tibet
  • 2
    Sweden
  • 3
    Northern hemisohere
  • 4
    Antarctica
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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.

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