Wegener believed continents moved, but he did not know how. Identify what needed to happen before Wegener's idea about moving continents could be proven.(1 point)

Responses

Scientists had to directly observe tectonic plate movement.
Scientists had to directly observe tectonic plate movement.

Wegener had to recheck his data and change his conclusions.
Wegener had to recheck his data and change his conclusions.

Advances in technology were needed to gather more evidence.
Advances in technology were needed to gather more evidence.

New information was needed on the composition of Earth's crust.