Which phrase best completes the diagram physical geography of eastern And central Africa

This illustration shows a building in alexandria during the hellenistic age. the building in this illustration was the first research library. a school led by aristotle. the palace of alexander iii. a famous lighthouse.

An important accomplishment of the chinese during the han dynasty was the a. invention of paper. b. production of bronze tools. c. construction of the great wall. d. building of royal tombs.

Why were the chang and xi rivers important to china’s development? a. they keep invaders out. c. they kept china isolated. b. they provided a route for ships to travel inland. d. they provided boundaries for the different political sections