5
Q:
| A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus | B) carbon, potassium, iron, magnesium, hydrogen, and nitrogen |
| C) hydrogen, carbon, calcium, potassium, oxygen, and phosphorus | D) oxygen, calcium, phosphorus, sodium, hydrogen, and carbon |
Answer: A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus
Explanation:
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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