The two all-water routes to Asia that had been discovered were around the continent <u>of Africa </u>to the east <u>and around the continent of South America</u> to the west
The physical geography of East Africa is dominated by the Great Rift Valley, which extends through the middle of the region from north to south. Associated with the rift valleys are vast savannas such as the Serengeti Plain, large lakes, high mountains, and the highlands of Ethiopia.
