Answer:
A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia and Egypt, all grew up in river valleys.
True it is true I think I may be wrong.If I am please point it out.
B) left behind mysterious stone sculptures.<span>HOPE I HELPED! GOOD LUCK STUDYING!!!! ^ _ ^</span>
Viruses cannot replicate themselves outisde of a cell.