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STD 11 - 9. Biomolecules — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 9. Biomolecules1 Mark
MCQ
The four elements that make up $99\%$ of all elements found in a living system are
  • ✓
    $H, O, C, N$
  • B
    $C, H, O, S$
  • C
    $C, H, O, P$
  • D
    $C, N, O, P$
✓

Answer

Correct option: A.
$H, O, C, N$
a
It's Obvious

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