Can you quote Takaki’s claim/argument for why Truman used the bombs? and Can you quote evidence used by Takaki to support his claim? (I will give brainliest)

What is the columbian exchange? o a. the changes that resulted from europeans settling in the new world b. the relationships that columbus and his men had with the natives they met o c. the ships that columbus bought with money from the king and queen of spain o d. the increase in the number of native american towns in the new world