It was the targeting of merchant ships by German
U-boats. America realized that any ship
including theirs was a target. This was
realized when the Germans sank the Luisitania.
Apart from that, the interception of the Zimmerman telegram where
Germany pledged to support Mexico get back its territories from the U.S. led to
American involvement in World War I.
High taxes, slave states vs non slave states, bad working conditions, bad pay,
<span>upper, middle, lower are corrrect
</span>
It was the "government" who owned the land in the collective farming model of the Great Leap Forward, since the idea was to take away the incentive for personal competition.
