Combination of O and O2 in the mid stratosphere is a/an ____reaction:

A ) Exothermic ✅

B ) Endothermic

C ) Both (a) & (b)

D ) None of these

Related Questions
  1. Temperature range of atmosphere is:
  2. Which is not a part of flue gas?
  3. The smell of photocopier machines is due to the presence of:
  4. % age of oxygen gas by volume in dry air is ____.
  5. Which factor determines the severity of a pollutant?
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