Which of the following was an effect of the columbian exchange on population?
a millions of people moved to the americas
b exchanges of food plants decreased populations in various regions
c some populations thrived as they developed resistance to new diseases
d millions of people moved to europe
what was an effect of the movement of foods like corn and potatoes from the western hemisphere to the eastern hemisphere?
a foods from the americas contributed to population growth around the world
b foods from the americas contributed to a rise in food prices around the world
c foods from europe did not grow well in the old world and famine resulted
d foods from the americas became widely grown in africa

The correct answer to number one is A)Millions of people moved to the Americas.

The beginning of the Columbian Exchange allowed European citizens to understand that there was a completely new continent with an opportunity to gain land and resources. The possibility of getting rich and having your own land was one of the biggest factors behind the huge movement of people from Europe to America. Religious freedom also played a significant role as well.

The correct answer to number 2 is A) foods from America contributed to population growth around the world.

Foods from America, like the potato, became staple of European diets. These foods contained a significant amount of nutrients and helped to feed more Europeans than ever before.

norsemen from northern countries had made earlier journeys

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.