What was unknown to scientists during Wegener’s time?(1 point)
Responses

Fossils were found in many places.
Fossils were found in many places.

Earth’s crust is made of plates that move.
Earth’s crust is made of plates that move.

The coasts of some continents fit together.
The coasts of some continents fit together.

Mountain ranges of some continents lined up.
Mountain ranges of some continents lined up.