Analyze the map below and answer the question that follows. A map of Africa and Europe. A line starts at Portugal, wraps around Africa, through a strait between Africa and Madagascar, and ends at India.

The map above shows the exploration route taken by .
A.
Cabral
B.
Columbus
C.
Dias
D.
de Gama

In four or more complete sentences, discuss the importance of the Columbian Exchange. Be sure to identify at least three of the products that were involved in the exchange.

All of the following developments made early exploration possible except .
A.
newer, faster ship models
B.
the use of astrolabes to determine location
C.
the increased accuracy of maps
D.
a detailed geographic coordinate system

Correct answers are  

D.  de Gama

During the Columbian exchange Europe and America exchanged many products that changed the diet of the people. The people in Europe were introduced with tobacco, chocolate, sugar and many other products. On the other side Europeans brought to America horses, pigs, chickens and many other animals. Still, there were many negative consequences among which was the spreading of diseases, among which the deathliest was smallpox.

D. a detailed geographic coordinate system

Explanation:

Columbus and Cabral were traveling to the New World, therefore they cannot be presented on this map. On the other side, Dias reached the Horn of Africa, but couldn't reach India. What he started was finished by De Gama.

answer; oxygen to the brain;