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What evidence did Wegener offer for Continental Drift?
And what was the name of the supercontinent that explained this evidence? (4)
Pangaea → continents formed this supercontinent
Geologic evidence
Glacial evidence
Fossil evidence
Why was Continental Drift rejected? (2)
Wegener proposed the continents moved due to tide-like forces of the sun & moon
Wegener proposed the continents moved tens of meters per year
What process occurs at mid-ocean ridges
How did the discoveries of magnetic anomalies and the age of the seafloor support this idea?
What are the lithosphere and the asthenosphere?
What properties distinguish these two layers?
What causes the lithosphere to move?
How did Pangaea break up? Where can we see that happening today?
What features and events would you find at a divergent boundary and why?
What features and events would you find at a convergent boundary and why?
What are the three types of convergent boundaries?
What features and events would you find at a transform boundary and why?
How do hot spots provide evidence for plate tectonics?
Which way does a plate move relative to a chain of hot spot volcanoes?