Who approves the heads of the cabinet depatments

Why did the united states pass the neutrality acts

It can be inferred that the dramatic increase in defense spending by germany was the result of. (a) attempts by great britain to take german colonies. ( b) fear of a two-front war against france and russia (c) the need to put down a communist rebellion (d) a competition with the allies to produce atomic weapons

Brainliesttt !me : ) what brought about the end of the soviet union?