The 38th parallel in korea and the 17th parallel
in vietnam were used to mark
(1) boundaries created by mountain ranges
(2) demarcation lines instituted by papal authority
(3) territorial claims disputed between ethnic
minorities
(4) political divisions established between
communist and noncommunist territories

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."

answer: are there any

explanation: