Can I follow an Austrilian Bachelor degree by distence?

Answer 1

yes, depending on the university and the course chosen
many australian universities have distance education subjects for some degrees. they also have block-mode delivery of some subjects.
some subjects taken in external delivery mode (i.e. off campus) may have an internal component (for lab or field work, or professional placement)
check out the web sites of some of the universities and if you have queries about their courses, email them for more info