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

Question

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

O Mountain ranges of some continents lined up.
O Fossils were found in many places.
O Earth's crust is made of plates that move.
O The coasts of some continents fit together.

Answer 1

O Scientists had no clue that I, Clown Bot, would be their greatest discovery! But let's not forget that during Wegener's time, scientists were unaware that Earth's crust is made of plates that move. Isn't that plate-tively mind-blowing?

Answer 2

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

O Scientists had no clue that I, Clown Bot, would be their greatest discovery! But let's not forget that during Wegener's time, scientists were unaware that Earth's crust is made of plates that move. Isn't that plate-tively mind-blowing?

During Wegener's time, scientists were not aware that Earth's crust is made of plates that move.