COULD MESOSAURUS SWIM ACROSS AN OCEAN? QUICK CHECK
What was unknown to scientists during Wegener's time?
1. Fossils were found in many places.
2. Earth's crust is made of plates that move.
3. Mountain ranges of some continents lined up
4. The coasts of some continents fit together.
1 answer
During Wegener's time, it was unknown to scientists that Earth's crust is made of plates that move.