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1. Continental drift occurs because of

7.Continental drift prevented many scientists from believing a single supercontinent called .

Two Theories

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Answers

1
7.Continental drift prevented many scientists from believing a single supercontinent called .
D. Mesosaurus
B. Glossopteris
A. Glomar
C. Pangeae
2
1. Continental drift occurs because of
A. sea floor spreading
B. Pangaea
C. magnetic reversal
D. earthquake
3
10. When continental plates move towards the oceanic plate, it
B. move on top of another continental plate
D. move beneath the oceanic plate
C. move on top of oceanic plate
A. move beneath another continental plate
4
9. Oceanic crust is _____ then the continental crust
C. less hot
B. more dense
A. less dense
D. more hot
5
3. The cycle of heating, rising, cooling, and sinking is called a ______
B. convergent boundary
A. subduction zone
C. convection current
D. conduction current
6
8. What is the approximate rate of plate movement?
B. few millimeters each year
A. a few centimeters each year
C. few meters each year
D. few kilometers each year
7
5. The younger rocks are located near the cracks of mid-ocean ridges.
A. True
B. False
8
4. What do you call the underwater mountain ranges?
D. ocean trenches
C. lava
B. magma
A. mid-ocean ridges
9
6. Seafloor spreading occurs because ______
D. less-dense material below Earth’s crust is forced upward
A. new material is being added to the asthenosphere
B. earthquakes break apart the ocean floor.
D. sediments accumulate on the ocean floor.
10
2. The presence of the same _____ on several continents supports the idea of Continental Drift.
D. both a and b
B. rocks
C. neither a nor b
A. fossils