GyanGram
ATTEMPT · PHYSICAL GEOGRAPHY · PRELIMS 2012
Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
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Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
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• Correct Answer: B
• Carbon, Hydrogen and Nitrogen are fundamental CHON elements forming amino acids, nucleic acids and organic molecules.
• Sodium, Calcium and Potassium are important for biological functions but not primary for life's origin.
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