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Q: Which elements are most abundant in living organisms?

  • 1
    oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus
  • 2
    carbon, potassium, iron, magnesium, hydrogen, and nitrogen
  • 3
    hydrogen, carbon, calcium, potassium, oxygen, and phosphorus
  • 4
    oxygen, calcium, phosphorus, sodium, hydrogen, and carbon
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Answer : 1. "oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus"
Explanation :

Answer: A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus Explanation: Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium, sulphur and phosphorus.

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