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- 1. Multiple Choice
Based on evidence from land features, fossils and climate, Wegener concluded that continents
sink
rise
move
- 2. Multiple Choice
All of the continents were joined together in a supercontinent that Wegener called
Pangaea
Gondwanaland
- 3. Multiple Choice
In sea-floor spreading, new crust is added at a
mid-ocean ridge
magnetic stripe
- 4. Multiple Choice
Subduction takes place at
mid-ocean ridges
deep-ocean trenches
- 5. Multiple Choice
Which features form the longest mountain ranges on Earth?
the mid-ocean ridges
the deep-ocean trenches
the Rockies
the Andes
- 6. Multiple Choice
Which process adds more crust to the ocean floor?
suction
sea-floor spreading
subduction
magnetic strip
- 7. Multiple Choice
Where does subduction occur?
along the middle of the ocean floors
down the middle of the mountain ranges
on continents
at deep-ocean trenches
- 8. Multiple Choice
Which process or processes change the size and shape of the oceans?
subduction only
sea-floor spreading only
both subduction and sea-floor spreading
both drilling for samples and subduction
- 9. Multiple Choice
Which theory describes the motion of and force driving Earth's plates?
first law of motion
third law of motion
continental drift
plate tectonics
- 10. Multiple Choice
What is the motion of Earth's plates like?
fast and in stages
slow and in stages
fast and constant
slow and constant
- 11. Multiple Choice
The San Andreas fault is an example of which kind of boundary?
transform
divergent
oceanic
convergent
- 12. Multiple Choice
Which feature forms at convergent boundaries?
mountain range
trench
rift valley
mid-ocean ridges
- 13. Multiple Choice
An undersea mountain chain where new ocean floor is produced, in a divergent plate boundary is?
deep-ocean trench
sea-floor spreading
mid-ocean ridge
- 14. Multiple Choice
A valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle is?
deep-ocean trenches
mid-ocean ridges
sea-floor spreading
subduction
- 15. Multiple Choice
Process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary is?
mid-ocean ridge
sea-floor spreading
deep-ocean trenches
subduction
- 16. Multiple Choice
Boundary where two plates slip past each other, moving in opposite directions are?
divergent
transform
convergent
- 17. Multiple Choice
Boundary where two plates collide?
convergent
divergent
transform
- 18. Multiple Choice
Boundary where plates move away from each other are?
convergent
Divergent
transform
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