Question

why did wegeners continental drift theory struggle to gain acceptance?
the distance between continents was viewed as too great.
there was no explanation for the force causing the movement.
wegener had made previous hypotheses that were proven wrong.
continental drift could not be observed.

Explanation:

Alfred Wegener proposed the continental drift theory, which suggested that continents move over time. However, a major flaw in his theory was the lack of a mechanism to explain how continents could move. Without a clear explanation for the force causing the movement, the scientific community was skeptical. The distance between continents was not the main issue as Wegener provided evidence like matching coastlines. There is no indication that Wegener had previous hypotheses proven wrong. While continental drift was slow, lack of observation alone wasn't the main rejection reason; the missing force explanation was crucial.

Answer:

There was no explanation for the force causing the movement.