Final answer:
One flaw in Wegener's theory of continental drift was that he believed continents plow through stationary oceanic crust. Another flaw was his belief that animals could swim across wide ocean basins. These flaws led to skepticism and criticism from other scientists.
Step-by-step explanation:
One flaw in Alfred Wegener's theory of continental drift was that he believed that the continents plow their way through stationary oceanic crust, which is not supported by scientific evidence.
Another flaw was that Wegener believed that animals like mesosaurus, lystrosaurus, and cynognathus were capable of swimming across wide ocean basins like the Atlantic and Indian Oceans. These flaws in Wegener's theory undermined its credibility and led to skepticism from other scientists.