The two actions by the Federal Government that were attempts to preserve the Union in the face of a bitter quarrel over slavery are Missouri Compromise and Compromise of 1850. Option B is correct.
The Missouri Compromise constituted the legislation that admitted Maine to the United States as a free state along with Missouri as a slave state, thus maintaining the balance of power between North and South in the United States Senate.
The Compromise of 1850 consists of five laws passed in September of 1850 that addressed the issue of slavery.
Germany
Austria
Japan
those are some countries that were destroyed and rebuilt
Trenches were common throughout the Western Front. Long, narrow trenches dug into the ground at the front, usually by the infantry soldiers who would occupy them for weeks at a time, were designed to protect World War I troops from machine-gun fire and artillery attack from the air.
First blank Roads and not sure about the second sorry.