Yes, Niagara Falls is very polluted.
Niagara river.
Its not polluted.
Polluted.
Niagara falls is along the Niagara RiverNiagara Falls is on the Niagara River.
The Niagara River is in North America
The Niagara River
Yes, the Po River is really polluted.
It's called the Niagara River.
Citarum is the most polluted river on Earth.
a bit niagra falls whooooooooooo!
Niagara Falls.