Which of the following landforms was most likely to limit the interaction between two prehistoric groups? forest lakes mountains rivers

khdkajd; lkad 'lk; aldkdjladkjkldhla

explanation:

hadkhadkhapkldjlkajdlfja

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."