UPSC IMPORTANT QUESTIONS
Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
a) Hydrogen, Oxygen, Sodium
b) Carbon, Hydrogen, Nitrogen
c) Oxygen, Calcium, Phosphorus
d) Carbon, Hydrogen, Potassium
Ans-[b]
Explanation-
Origin of the life depends upon 6 elements-carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus.
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