Why does the map of the mississippi river watershed contain both the river system and the land that surrounds it?

All of the smaller rivers or tributaries (Ohio River into Mississippi)  All of the ... water that flows over land and has not been absorbed into the ground.

the answer is "d"

(context) if you were to travel to the middle east and go into peoples homes there would be like 4 generations in there

(more context) i'm pretty sure in the middle east they take loyalty and family bonds very serious

(last bit of context) i'm also positive that extended families are most commonly found in urban areas

answerinternational border(ib);