Answer:
it was a way Americans contributed to the war effort.Supplies such as gasoline, butter, sugar and canned milk were rationed because they needed to be diverted to the war effort. War also disrupted trade, limiting the availability of some goods.
Explanation:
I would say that the most likely reason is <span>a high birth rate. There's usually a higher birth rate in less developed countries. The higher the birth rate, the more young children, the smaller number of </span><span>an ageing population. </span>