What caused ww1 make a claim on what the most important factor was in the start of the war

How did slavery end in the united statesa. it ended with the emancipation proclamationb. it ended when the union won the civil warc. it ended with the fifteenth amendmentd. it ended with the 13th amendment

Which of the following statements os an example of how climate and vegetation influence lifestyles? a. many south koreans enjoy watching american films and listening to american music.b. many mongolians are pastoral nomads who raise livestock for a living.c. many chinese peasants are moving to cities in search of better jobs opportunities.d. many north koreans wish to see relatives now living in korea.

The 20th amendment, also called the lame duck amendment, decreased the amount of time between the presidential election and the inaugration of the new president. what are the advancements that allowed for this amendment?