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- 1. Multiple Choice
The supercontinent in the continental drift theory was called ____.
Panthalassa
Pangaea
Mesosaurus
Africa
- 2. Multiple Choice
What hypothesis states that the continents were once joined to form a single supercontinent?
plate tectonics
seafloor spreading
continental drift
paleomagnetism
- 3. Multiple Choice
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
- 4. Multiple Choice
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
divergent boundary
convergent boundary
transitional boundary
- 5. Multiple Choice
A divergent boundary at two continental plates can result in a ____.
rift valley
volcanic island arc
continental volcanic arc
subduction zone
- 6. Multiple Choice
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.
- 7. Multiple Choice
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
- 8. Multiple Choice
Over what surface do lithospheric plates move?
lower mantle
inner core
outer core
asthenosphere
- 9. Multiple Choice
Oceanic crust is ______________ than continental
less dense
more dense
less hot
more hot
- 10. Multiple Choice
What do you expect to find at a mid-ocean ridge?
relatively young rocks
reverse fault
thick accumulation of sediments
very ancient rocks
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