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

Question

Responses

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

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.

Answer 1

During Wegener's time, it was unknown to scientists that Earth’s crust is made of plates that move. While Wegener presented evidence for continental drift, the concept of plate tectonics and the movement of the Earth's lithospheric plates was not established until later, in the mid-20th century.