·plants were spread from one continent to another. · animals and diseases were introduced to new areas. · populations were destroyed by foreign contact. · the process began in the late 15th century. all of these are describing a) the silk roads. b) scientific discovery. c) the columbian exchange. d) circumnavigation of the world.

answer: in october 1962, an american u-2 spy plane secretly photographed nuclear missile sites being built by the soviet union on the island of cuba. president kennedy did not want the soviet union and cuba to know that he had discovered the missiles. he met in secret with his advisors for several days to discuss the problem.

explanation:

living during the great depression had a major affect on the mentality many people. a good portion of people who lived during that time do not trust banks. this is likely the result of the many widespread bank failures in the 30s that caused people to lose their life savings.

gpd hope this

~blake