छ: मौलिक जैविक तत्व  है -
  • 1C,H,O,N, S,P,
  • 2C, H, O, N, P, Mg, 
  • 3

    C, N, S, Mg, Hg

  • 4

    C, H, O, Mn, B, CI

Answer:- 1

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