What was unknown to scientists during Wegener's time? (1 point)
O Mountain ranges of some continents lined up.
Fossils were found in many places.
O Earth's crust is made of plates that move.
O The coasts of some continents fit together.
O Mountain ranges of some continents lined up.
Fossils were found in many places.
O Earth's crust is made of plates that move.
O The coasts of some continents fit together.