What are the Four Major Elements Found in the Chemicals

Question

What are the four major elements found in the chemicals that comprise the human body?
A)nitrogen,oxygen,calcium,sodium
B)hydrogen,carbon,phosphorus,calcium
C)carbon,hydrogen,oxygen and nitrogen
D)oxygen,nitrogen,potassium,calcium
E)potassium,phosphorus,sodium,hydrogen

Accepted Answer

The four major elements found in the chemicals that comprise the human body are carbon, hydrogen, oxygen, and nitrogen. These four elements make up about 96% of the body's mass. Choice A includes nitrogen and oxygen, but misses carbon and hydrogen. Choice B includes carbon and hydrogen, but misses nitrogen. Choice D includes nitrogen and oxygen but also includes potassium which is a minor element in the human body. Choice E includes phosphorus which is also a minor element in the human body.