How many state doe the Ohio River go through or by?
six
How many are included in it's drainage basin?
15
How many people use it for drinking water?
three million
What is one of its tributaries?
Tennessee River
Where does that rank in size among all its tributaries?
The largest
What river is the Ohio River a tributary of?
Mississippi
How is that measured?
cu ft/s
Which way does it flow?
westward
Beginning where?
Pittsburgh
Where is that?
Pennsylvania
Where does it end up?
Cairo
Is that that in Egypt?
No
Where?
Illinois
For what group is the river a big part of history?
Native Americans,
What did they make along it?
civilizations
What did it connect?
communities
Did they use it for anything?
yes
For what?
transportation
Anything else?
yes
What?
trading