Question

About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and

• A. calcium and phosphorous
• B. phosphorus and sulphur
• C. sulphur and magnesium
• D. magnesium and sodium

Answer 1

The correct option is B

phosphorus and sulphur

Only six elements carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur (sometimes called CHNOPS) make up about 98% of the mass of all living organisms.