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The supercontinent in the continental drift theory was called ____.
What hypothesis states that the continents were once joined to form a single supercontinent?
The mid-ocean ridge occurs along a
convergent boundary where new crust is formed
transform boundary where crust is subducted
divergent boundary where sea floor spreading takes place
divergent boundary where subduction takes place
What type of boundary occurs where two plates move together, causing one plate to descend into the
mantle beneath the other plate?
transform fault boundary
A divergent boundary at two continental plates can result in a ____.
volcanic island arc
continental volcanic arc
The most conclusive proof for continental drift was provided by
the coastlines of continents on a map.
evidence of sea-floor spreading
identical fossils found on two separate continents
changes in climatic patterns.
The youngest rocks on the ocean floor are typically located near what feature?
a mid-ocean ridge
a continental shelf
an abyssal plain
a subduction trench
Over what surface do lithospheric plates move?
Oceanic crust is ______________ than continental
What do you expect to find at a mid-ocean ridge?
relatively young rocks
thick accumulation of sediments
very ancient rocks