If similar fossil collections are found on two continents, now widely separated, what is a possible explanation?
One possible explanation is that at the time that the fossilized species lived, the two continents were part of a single landmass.
What are mid-ocean ridges?
Mid-ocean ridges are underwater mountain ranges along divergent plate boundaries where new ocean crust is created.
How do fossils help prove that the continents move?
The same fossils found on continents that are now separated show that the continents were once connected and later drifted apart.
Restate Wegener’s hypothesis in your own words.
Wegener hypothesized that Earth’s continents slowly move and were once joined together as one large supercontinent called Pangaea.
Explain how a mid-ocean ridge is formed.
A mid-ocean ridge forms when oceanic plates pull apart, magma rises through the gap, and the magma cools to form new crust and an underwater mountain range.
What was Pangaea?
Pangaea was a supercontinent made up of all the continents joined together long ago.
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