Please I have 2 questions can anyone tell me how niagra falls was created and the second one is how did niagra falls use to be in UDA?

Start with this
Niagara Falls - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Niagara_falls)

There are links at the bottom as well.

Hi thanks for your responsw but there is no lrelevent information related to my questions, it is my daughters homework