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.
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Similar Questions
Q1
Two gases found dissolved in natural water are
(a) oxygen and carbon dioxide
(b) hydrogen and oxygen
(c) sulphur dioxide and hydrogen
(d) chlorine and ammonia
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Q2
All of the following are greenhouse gases except_____________.
(a) Methane
(b) Carbon dioxide
(c) Ammonia
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Q3
Which of the following statements are correct?
I. Liberation of oxygen from water took place by the action of UV rays from the sun.
II. Free oxygen combined with methane and ammonia to form water, carbon dioxide and other gases.
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Q4
Pick the odd member from the list giving reasons :