How can fossil evidence be used to support the idea the at all the contents were once connected?

Answer 1

Since you see the same fossils from on continent to another, it proves that all the continents were once connected.

Let's say one fossil of a small animal is found on one continent, and on another far away, such as Antarctica and Africa. It would be impossible for the small animal to swim from Antarctica to Africa or Africa to Antarctica because it is a small animal, after all. Plus, it might not be a sea animal (let's say it's not for this scenario, so that we can prove that all the continents were once connected).

Therefore, you can say that they were all once connected since the fossils of this small land animal were found in Antarctica and Africa, and it would have been impossible for it to get across if the continents weren't connected. So, since the continents were connected before, this small land animal could easily walk over from Antarctica to Africa or Africa to Antarctica.

This just supports the idea that all the continents were once connected. There are more facts to go into it, such as how all the continents somewhat fit together like a puzzle.

Hope I helped :)