Major component of the atmosphere on Venus and Mars Planet is :

Options :
  1. Carbon Dioxide
  2. Oxygen
  3. Sulphur
  4. Water Vapour
Answer and Explanation :-

Answer: Option 2

Explanation:

Oxygen is the major constituent of our present day atmosphere and is a direct consequence of the evolution of life on earth.

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Until the day when God will deign to reveal the future to man, all human wisdom is contained in these two words,-'Wait and hope.'" Chapter 7
-Alexandre Dumas The Count of Monte Cristo