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Q: Ozone at the higher level of the atmosphere is a product of –––– acting on oxygen molecules
  • A. x-rays
  • B. UV radiation
  • C. IR radiation
  • D. gamma rays
Correct Answer: Option B - Ozone at the higher levels of the atmosphere is a product of UV radiation acting on oxygen (O₂) molecule. The higher energy UV radiations split apart some molecular oxygen (O₂) into free oxygen atom. These atoms then combine with the molecular oxygen to form ozone.
B. Ozone at the higher levels of the atmosphere is a product of UV radiation acting on oxygen (O₂) molecule. The higher energy UV radiations split apart some molecular oxygen (O₂) into free oxygen atom. These atoms then combine with the molecular oxygen to form ozone.

Explanations:

Ozone at the higher levels of the atmosphere is a product of UV radiation acting on oxygen (O₂) molecule. The higher energy UV radiations split apart some molecular oxygen (O₂) into free oxygen atom. These atoms then combine with the molecular oxygen to form ozone.