Everyday Science MCQs Biology
Q Which are the four most abundant elements in living cells ?
  • A A. Carbon, oxygen, nitrogen, sulfur
  • B B. Carbon, oxygen, hydrogen, nitrogen
  • C C. Carbon, oxygen, sulfur, phosphorus
  • D D. Carbon, sulfur, hydrogen, magnesium
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Next Which one is not correct for a productive theory?
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Word of the Day
12 Jul
Obdurate
stubbornly refusing to change one’s opinion or course of action.
آدی، بدکار، Ψ³Ω†Ϊ―Ψ―Ω„ΫŒ

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