About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen, and:
Correct answer: A. Calcium and Phosphorus
- A. Calcium and Phosphorus
- B. Phosphorus and Sulphur
- C. Sulphur and Magnesium
- D. Magnesium and Sodium
Explanation
98% body mass of a living organism is composed of C H O N P ANd S according to New sindh text book
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