if there was no way of my tortosie falling is it appropraite and sage to have differnt levels to a tortosie enclosure? i havent but i am just wonering?

why not. if you were to do this, which i have thought about make sure you have a wall going up to the second floor and a wall on the second floor if you have an open part in front of the floor. that way the tort cannot fall down. also, it should be high enough so that the tort cannot get over it.

If you look through some of the enclosure threads you will see pictures that others have posted with 2 story enclosures. Some people have done a very nice job!