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Which of the following is NOT one of the four major elements found in the human body?
A
Sodium (Na)
B
Oxygen (O)
C
Carbon (C)
D
Nitrogen (N)
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1
Identify the four major elements that make up the majority of the human body. These are oxygen (O), carbon (C), hydrogen (H), and nitrogen (N).
Review the options provided in the question: Sodium (Na), Oxygen (O), Carbon (C), and Nitrogen (N).
Compare each option to the list of the four major elements. Oxygen (O), Carbon (C), and Nitrogen (N) are part of the four major elements.
Recognize that Sodium (Na) is not one of the four major elements, even though it is an essential element in smaller amounts for physiological functions like nerve signaling and fluid balance.
Conclude that the correct answer to the question is Sodium (Na), as it is NOT one of the four major elements found in the human body.