The US had many attempts at compromise with varying levels of sucess before the Civil War. However, when Lincoln was elected president (on the platform of stopping the expansion of slavery), the South lost hope and seceded.
There is always a solution other than war, however, in this case, war had been a looming possibility for quite some time, and compromise probably would've only pushed the war back a year or two.
Hope this helps :)
Answer:
The American ru le of Puerto Rico hurt those Puerto Ricans because they were not an independent nation and those like Luis Munoz Rivera were determined to fight for it. However, we also helped them by providing protection for the people and the property and eventually allowing them to have a say in government. I believe the benefits outweighed the harms because it could be possible that they would have affairs with other countries and might go back to strict rule, but instead they were safer than they could have been.
First one is D
Second on is B
Third one doesn't show the map :(
Forth one no map either sorry
Trees, rainforest, water, air sheltar ,plants, animals