Chapter 13 Earth as a System: Energy, Matter, and Life - Part 2

Which biogeochemical cycle is critical for synthesizing proteins, DNA, and RNA in living organisms?

Type: MCQ • Marks: 1
Which biogeochemical cycle is critical for synthesizing proteins, DNA, and RNA in living organisms?
Options
A. Nitrogen and Carbon cycles
B. Water cycle only
C. Helium cycle
D. Rock cycle
Explanation
Nitrogen and carbon are fundamental building blocks for amino acids and nucleic acids.
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Class 9th Science (MCQ)

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