I believe the answer is: 2. but should be abolished.
The abolitionists see slavery as inhumane and should be stopped. This view become even more popular after the industrial revolution that come from western Europe, which eliminate the needs of using slave labour since it can be replaced with machines.
I would say that Christopher Columbus was influenced by the travels of Marco Polo.
He was greatly inspired by his travels and wanted to become as famous as Polo was as an explorer, and eventually, he did follow in his footsteps. Polo's travels changed the European perception of the Asian world, and as you know, Columbus also wanted to go to Asia, but he ended up in America.
Answer:
C. nile river. hope this helps
Answer;
The new industrial unions were different from the older trade unions in that they were more focused on protecting workers from very dangerous conditions in the factories.
Explanation;
Industrial unions were organizations of skilled (craft workers) and unskilled (common laborers) workers within an industry.
<span>Industrial unions organized workers industry wide including unskilled with skilled workers rather than following strict craft lines like traditional unions. Many of the new industrial unions arose in the 1930's with the Congress of Industrial Organizations. </span>