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.

They were used to make ammunition and explosives.

The Japanese attack on Pearl Harbor made US citizens emotionally united, which led US to join the WWII. As a result the need for Ammunition and Explosives got increased more than ever.

Commodities like scrap iron, rubber,  aluminum,  and warm cloth become need of the hour.  Metal was an important material to make tanks and ammunition, due to which people started to recycling and donating them so that it will be used in ammunition, tanks, and explosives.

Therefore, American citizens across the country contribute in fulfilling the  demand for rubber, unused clothes, nylon and silk stockings, and any leftover materials  to make ammunition and explosives.

Learn More about Pearl Harbor Attack:

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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.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

19th amendment granted women the right to vote. the 19th amendment guarantees all american women the right to vote.