![The observation that the continents fit together like puzzle pieces, and may once have been connected, led Alfred Wegener to propose a theory in 1910 called. - ppt video online download The observation that the continents fit together like puzzle pieces, and may once have been connected, led Alfred Wegener to propose a theory in 1910 called. - ppt video online download](https://slideplayer.com/slide/6242613/21/images/2/Continental+Drift.jpg)
The observation that the continents fit together like puzzle pieces, and may once have been connected, led Alfred Wegener to propose a theory in 1910 called. - ppt video online download
![The observation that the continents fit together like puzzle pieces, and may once have been connected, led Alfred Wegener to propose a theory in 1910 called. - ppt video online download The observation that the continents fit together like puzzle pieces, and may once have been connected, led Alfred Wegener to propose a theory in 1910 called. - ppt video online download](https://slideplayer.com/slide/6242613/21/images/8/1.+Puzzle+Pieces+Continents+look+like+they+could+be+part+of+a+giant+jigsaw+puzzle.jpg)
The observation that the continents fit together like puzzle pieces, and may once have been connected, led Alfred Wegener to propose a theory in 1910 called. - ppt video online download
![Continental Drift | The Emergence and Evolution of Plate Tectonics - University of Illinois at Urbana-Champaign Continental Drift | The Emergence and Evolution of Plate Tectonics - University of Illinois at Urbana-Champaign](http://publish.illinois.edu/platetectonics/files/2014/12/africa.jpg)