Final answer:
The statement that supports the main argument in the "Myth of Continents" is about Alfred Wegener's evidence for continental drift which led to the theory of Pangea and plate tectonics.
Step-by-step explanation:
Which statement supports the main argument made in the "Myth of Continents", regarding the understanding of continental drift? The research done by Alfred Wegener supports the theory that continents were once joined in a supercontinent known as Pangea. Wegener's evidence for continental drift includes the jigsaw-like fit of the continents, matching fossils on separate continents, corresponding mountain ranges, and paleoclimatic data suggesting past proximities to polar and equatorial regions. This concept was revolutionary in the early 1900s and laid the groundwork for the development of plate tectonics.