Because most countries involved in the war had alliances with others. And when one was attacked the ally came to protect the other. Therefore countries became more and more involved in the war
<span>Stop the spread of Communism by increasing US presence around the world and supporting democracy and capitalism.
The policy of containment was a usa cold war policy of countering the pread of communism and it was done in response to Soviet expansionism dream.
</span>
Answer:
You don't really have any multiple choice, so here's an explanation. The entire reason for early sports was to teach younger generations how to work in a team, so that when they worked in industrial factories and businesses, they had already learned teamwork. Pro sports began to rise in popularity as rivalries between regional areas in the US rose through the progressive era. These rivalries had existed since the antebellum era in America before the civil war. Plus, there weren't many forms of entertainment in the industrial areas, and sports(watching or playing) was a great way to keep individuals off the streets and in a better area. Thus, pro sports popularity rose in the 1900s.
Amino Acids Are Linked by Peptide Bonds to Form Polypeptide Chains.
