10 Questions
What is the primary evidence that suggests the Appalachian Mountains and the Caledonian mountains were once part of the same mountain chain?
Geological evidence of similar rock types
What can be inferred from the fact that fossils of Lystrosaurus have been found in South America, Africa, India, Antarctica, and Australia?
These continents were once connected by land bridges
What is the significance of the similar glacial grooves found along the coastlines in the Southern Hemisphere?
They support the theory of continental drift and Pangea
According to Wegener's theory, what was the original position of the continents?
They were separated from the ocean floor
What is the primary reason why it is difficult to conclude that multiple glaciers formed simultaneously and independently on separate continents?
The glaciers would have required a completely frozen world
What is the approximate time interval between the reversals of the Earth's magnetic field?
300,000 years
What is the name of the process by which the seafloor is spreading apart?
Sea floor spreading
What is the main reason for the movement of the tectonic plates?
Convection deep within the Earth
What is the term used to describe the regions where volcanic materials rise from the asthenosphere into the lithosphere?
Hotspots
What is the difference between the continental crust and the oceanic crust?
Continental crust is less dense, oceanic crust is denser
Explore how continents fit together like a puzzle and learn about the geological history of mountain formation. Discover how separate mountain chains were once part of a single long chain and how fossils provide evidence of their shared past. Dive into the formation of the Caledonia and Appalachian Mountains.
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