according to the map which four items were introduced to the Americas from the Eastern Hemisphere as part of the Columbian Exchange

the american revolution led to the creation of a democratic republic,is the correct answer;

the french gave their support to another tribe during he war.

do but i don't go there

explanation:

btw this is in middle school stuff lol

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)