What is the result of the action of ultraviolet $(UV)$ rays on molecular oxygen $(O_2)$?

  • A
    Increase of molecular oxygen in the troposphere
  • B
    Decrease of molecular oxygen in the troposphere
  • C
    Decrease of molecular oxygen in the stratosphere
  • D
    Formation of ozone in the stratosphere

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Similar Questions

Which of the following statements is not correct?

Assertion $(A)$: Chlorofluorocarbons are responsible for ozone depletion.
Reason $(R)$: Ozone level decreases by as much as $67\%$ every year.

Which of the following is responsible for the depletion of the ozone layer?

Harmful ultraviolet radiations from the sun cause:

The main aim of the 'Earth Summit' organized in Brazil was:

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