Good ozone is formed in------

Options :
  1. atmosphere
  2. stratosphere
  3. troposhere
  4. all of the above

Answer and Explanation :-

Answer: Option 2


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I must not, like the quietists, reduce all religion to a denial of any specific action, despising all other means, since what makes perfection is God's order, and the means he ordains is best for the soul.
-Jean-Pierre de Caussade The Sacrament of the Present Moment