Multiple choice

Arrange the following elements, present in human body, in the descending order of their percentage

  1. Oxygen
  2. Nitrogen
  3. Carbon

  1. 1 and 2 only

  2. 1 and 3 only

  3. 1, 3, 2

  4. 2 and 3 only
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The human body is composed primarily of oxygen (approx 65%), followed by carbon (approx 18%), and nitrogen (approx 3%). Therefore, the descending order is oxygen, carbon, nitrogen, which corresponds to 1, 3, 2.

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