What was  primary  cause for the growth in global population?
a.
the slave trade
c.
new food crops
b.
new technology

c. New food crops

Explanation:

After the discovery of America, the Columbian Exchange began. This was a system of exchange of goods, people and ideas that took place between Europe and the New World. One of the advantages that such an exchange brought was the adoption of new food crops in Europe. Foods such as potatoes, tomatoes, chocolate, vanilla, sugar cane, maize, peppers, beans and peanuts arrived to Europe, and the adoption of these new crops led to an important growth in human population.

b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.