Some scientific theories are so well-supported that it would be foolish for the Church to try to deny them in order to save a particular piece of dogma. So they re-interpret the Biblical passage or the dogma instead, thus protecting the faith.
I have no idea what your basis is for statements such as these, but they're ridiculous. Science, for the open-minded and objective, has done nothing but confirm the tenets for a good chunk of what the Bible teaches regarding varying topics that would fall under the "scientific" category or hinge upon evidence within that community.
Archaeologically, there hasn't been a discovery or excavation to date that has done anything but verify the historicity of the Bible.
Those are the facts. As usual, if you want to believe that the world is flat, just like everyone on earth at one time, then feel free. ; )
You know, I've wondered if the Tower of Babel story is an allegorical story that chronicles part of the Indo-European migrations. Sort of a written story of something spread in tales.