Question

Gases present in the primitive earth were

• A. Methane, Ammonia, Oxygen and Water vapour
• B. Methane, Ammonia, Carbon dioxide and Chlorine
• C. Methane, Ammonia, Hydrogen, Carbon dioxide
• D. Methane, Ammonium oxide, Hydrogen peroxide, Carbon dioxide

Answer 1

The correct option is C Methane, Ammonia, Hydrogen, Carbon dioxide

The atmosphere of the primitive earth was reducing in nature and consists of gases like methane, ammonia, hydrogen and carbon dioxide and the presence of ultraviolet radiation from the sun provided the energy for the transformation of these substances into organic molecules.

So, the correct answer is option C.