Which of the following is why geographers divide up a continental region when they are studying it?

By dividing a continental region into different areas, geographers are able to compare these areas and determine how they are different from each other and how they work together as a whole system. This allows geographers to piece together smaller bits of information to create a larger understanding of the patterns, both human and physical, that exist on the surface of the Earth.

monasticism. people often do monasticism in monasteries

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."