When attacking difficult material, read first for a. what you do understand c. technical information b. what you plan to review before the test d. definitions of vocabulary words

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."

the answer is b. hope this