How Much Iron is in the Human Body?
A human body has enough iron in it to make a metal nail 3 in. (7.5 cm) long. Most of this iron is in the blood.
Why Are Barns Painted Red?
Barns are painted red because red paint is cheap.
A human body has enough iron in it to make a metal nail 3 in. (7.5 cm) long. Most of this iron is in the blood.
Barns are painted red because red paint is cheap.