False; scientists rejected the theory because it did not explain how the continents moved.
Alfred Wegener's Continental Drift Theory posited that the continents were once joined together in a supercontinent called Pangaea, which eventually drifted apart. However, the theory was not widely accepted at the time because Wegener could not provide a convincing mechanism for how the continents could move across the Earth's surface. It wasn't until the development of plate tectonics in the mid-20th century that his ideas gained broader acceptance.