If she keeps a healthy diet and eat her greens she should not need it but some need it due to menstruation.
Because their growing and their bodies need more neutrinos.
Women lose a significant amount of iron each month with menstruation so they need more dietary iron to replace what is lost!
because you need more solvent than solute, so you need more to steel i guess
Mainly because at 15 yrs of age a girl has surly started her monthly cycle, causing her to loose iron in her system resulting in anemia.
Because girls will be getting their period and they need more iron to replace the blood they lose.
more
Women generally need more iron than men due to menstruation, which causes them to lose iron each month. A 20-year-old woman may also require more iron for pregnancy, if she becomes pregnant. Men, on the other hand, do not have these additional iron requirements.
There have been times when iron was more valuable than gold. Most bronze age civilizations valued iron more highly than gold, as it was both rarer (iron ore is common, naturally occurring pure iron is not) and more useful (iron is significantly stronger than bronze, and much, much stronger than gold).
gold is more expensive than iron simply because iron is more common and gold is also a purer metal
aluminum is more durable than iron.
A girl need a man who can understand and adjust through out life. it is more than any worth.
because steel was stronger than iron