Question

Why were materials such as scrap iron, rubber, and aluminum recycled during the war? They were used to make ammunition and explosives. They were used to make American automobiles. They were used to make peacetime goods. They were used to make stoves and refrigerators.

Answer 1

materials such as scrap iron, rubber, and aluminum were scarce during the war so they are recycled.  They were used to make ammunition and explosives.

Answer 2

Q asked during the war, so ans is They were used to make ammunition and explosives.