Question

what is the main reason why wegeners theory was initially rejected? question 4 no mechanism for movement opposition from scientists lack of evidence insufficient technology

Explanation:

Alfred Wegener proposed the continental drift theory. However, he could not explain the mechanism by which continents moved. Scientists at the time knew that forces like buoyancy or tides were too weak to move entire continents. Without a valid mechanism, the theory was hard to accept. While there was some opposition from scientists and technology was limited (which affected evidence - gathering to some extent), the lack of a movement mechanism was the most fundamental flaw.

Answer:

No mechanism for movement