Which is not poisonous gas?

A ) Ozone

B ) carbonn monoxide

C ) Carbon dioxide ✅

D ) all of these

Related Questions
  1. Ozone depletion was first noticed over Antarctica in:
  2. Ultraviolet radiations can cause:
  3. Higher concentration of CO cause:
  4. The pH of acid rain is:
  5. The region in which ozone layer deplets is called:
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