Which animal introduced by european traders changed the lifestyles of american indians living on the great plains? llamas horses dogs guinea pigs

How did the economy in the 20’s lead to the florida land boom.

Which of the following american companies had a monopoly in the late 1800s? a. deere and company b. sears, roebuck and company c. standard oil company d. general electric company

How does the concept of competition relate to the arms race between the us and the soviet union during the cold war?