Explanation:
in the human body or in general sweetie?
.5 of a micrometer in width
2 micrometers in length
Answer:
C. Oxygen & Hydrogen.
Explanation:
The body is made of 65% Oxygen, 18% Carbon, 10% Hydrogen, 3% Nitrogen, and 4% other elements.
This is because iron is used to make a protein called hemoglobin. This protein helps blood cells carry oxygen around the body.
