Description : On the average, what percent age of human body has the element of oxygen? (1) 65 (2) 25 (3) 10 (4) 5
Last Answer : (1) 65 Explanation: This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds ... . Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.