Zimmermann telegram- Nothing like negotiating with a neighbor to invade their front lawn.
Unrestricted submarine warfare- Sinking ships owned by the US constantly is already making us angry.
and the sinking of the Lusitania- Now this wasn't the final straw but it did indeed shake US support for Germany and caused outrage all over the USA.
The m∠BAD would be C. 71.58<span>°. This is because of the theory of supplementary angles. </span>
The Pope I guess.... because he was given importance all over the world while the king was known only in an area or a country
Fields became more productive, spurring population growth.