Which of the following was an outcome of the Columbian Exchange? А
The life expectancy of Native Americans increased.
Horses and smallpox were introduced in Europe.
с
Sugar and rice were introduced in Africa.
D
The diets of Europeans improved.
E
The population of Europe decreased.

What principle did president truman invoke in sending u. s. troops into south korea without first asking congress to declare war?

Which one of the following is true of jamestown? sir francis drake founded the settlement in 1619. o john smith was responsible for introducing tobacco. o black slaves were brought to jamestown in 1619.

Why might collective bargaining fail, causing a union to go on strike? a the union agrees with the boss about wages. b the boss compromises about work hours. c the factory goes out of business, causing the workers to lose their jobs. d the boss refuses to address dangerous working conditions in the factories.