Which Pair of Elements Would Make Up More of Your

Question

Which pair of elements would make up more of your body weight than any of the other pairs below?
A)sodium and chlorine
B)carbon and oxygen
C)phosphorus and magnesium
D)potassium and iodine

Accepted Answer

Carbon and oxygen together make up about 65% of the human body by mass, mainly in the form of water and organic molecules like proteins, carbohydrates, and lipids. The other pairs listed make up significantly less of the body's mass.