Truueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
The Seine river
Did you hear about the guy who dived in to a river in France? He was in-Seine!
Insane. Get it? No? OK...
In Geography, when you mention characteristics, it refers to the actions and the ideas of man that changes or changed the Earth. Characteristics in Geography can also refer to as the natural and current features seen all around the Earth.
The ocean, Mountains, countries, or continents would probably be the best hope this helps