Answer:
4 number is the correct answer.
The columbian exchange was <span>the traffic of goods and ideas between Europe and the Americas during the 15-16th centuries. after Christopher Columbus supposedly discovered the americas, many did the same of coming over and bringing along goods such as plants, animals, ideas, and diseases that later on spread as an epidemic.
-hope this helps!</span>
<em>Workers in towns may find it more difficult to join a union if corporate stores refuse to sell items to union members. Because the union and its members cannot benefit from these stores, and vice versa. This makes joining a union in a town difficult.</em>
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<em>Consider marking "Brainliest". </em>
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<em>- Robert</em>
Britain and The United States were allies. They wanted to end the war (World War 1). Wilson saw Germany's actions as an act of war and thus ended the Isolation Policy.
