Download Chapter 7 Practice Test

Chapter 7 Practice Test
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. Tectonic plates consist of
a. continental crust.
b. oceanic crust.
c. both continental and oceanic crust.
d. mesosphere.
____
2. The deep interior of the Earth can be mapped using
a. seismic waves.
c. information from drilling expeditions.
b. sonar.
d. ocean waves.
____
3. Wegener thought that all the continents were once together in one large continent called
a. Gondwana.
c. Eurasia.
b. Laurasia.
d. Pangaea.
____
4. New oceanic lithosphere forms as a result of
a. sea-floor spreading.
b. normal polarity.
c. reverse polarity.
d. continental drift.
____
5. Evidence for sea-floor spreading has come from
a. fossils in South America and Africa.
c. ancient climatic conditions.
b. magnetic minerals on the ocean floor.
d. the breakup of Pangaea.
____
6. What is the outermost layer of the Earth called?
a. core
c. asthenosphere
b. lithosphere
d. mesosphere
____
7. What is the liquid layer of the Earth’s core called?
a. lithosphere
c. inner core
b. mesosphere
d. outer core
____
8. What type of fault usually occurs because of tension?
a. folded
c. strike-slip
b. normal
d. reverse
____
9. What type of fault usually occurs because of compression?
a. folded
c. strike-slip
b. normal
d. reverse
____ 10. In a reverse fault, where does the hanging wall move relative to the footwall?
a. upward
c. horizontally
b. downward
d. stays the same
____ 11. In a normal fault, where does the hanging wall move relative to the footwall?
a. upward
c. horizontally
b. downward
d. stays the same
____ 12. What is the area where two tectonic plates meet called?
a. a collision
c. a boundary
b. a mid-ocean ridge
d. a rift zone
____ 13. What type of boundary is formed when plates collide?
a. convergent
c. divergent
b. horizontal
d. transform
____ 14. What type of boundary is formed when plates separate?
a. convergent
c. divergent
b. horizontal
d. transform
____ 15. What type of boundary is formed when plates slide past each other?
a. convergent
c. divergent
b. horizontal
d. transform
____ 16. Where does sea-floor spreading take place?
a. convergent boundaries
b. transform boundaries
c. oceanic volcanoes
d. mid-ocean ridges
____ 17. Seismic waves travel through Earth’s layers at different speeds depending on the
a. density.
c. area.
b. mass.
d. shape.
____ 18. Mountains formed by magma that reaches the Earth’s surface are
a. slip-strike.
c. fault-block.
b. folded.
d. volcanic.
____ 19. The fact that similar fossils are found on both sides of the ocean is evidence of
a. global positioning.
c. continental drift.
b. magnetic reversal.
d. oceanic drifts.
____ 20. Sets of deep cracks that form between two tectonic plates that are pulling away from each other are known as
a. mid-ocean ridges.
c. clefts.
b. troughs.
d. rift zones.
____ 21. What is compression?
a. stress squeezing an object
b. stress pulling an object
c. stress breaking an object
d. stress releasing an object
____ 22. What is tension?
a. stress squeezing an object
b. stress pulling an object
c. stress breaking an object
d. stress releasing an object
____ 23. What is it called when Earth’s magnetic poles change places?
a. a strike-slip fault
c. sea-floor spreading
b. magnetic reversal
d. continental drift
____ 24. What can tectonic plates form when they converge?
a. mid-ocean ridges
c. sea floor
b. mountains
d. asthenosphere
____ 25. What is the order of the layers of the Earth from the surface to the center?
a. asthenosphere, lithosphere, mesosphere, outer core, inner core
b. lithosphere, asthenosphere, mesosphere, outer core, inner core
c. mesosphere, outer core, inner core, lithosphere, asthenosphere
d. lithosphere, asthenosphere, mesosphere, inner core, outer core
____ 26. Tectonic plates “float” on
a. the ocean.
b. the mantle.
c. the asthenosphere.
d. the lithosphere.
____ 27. Earthquakes produce
a. seismographs.
b. maps.
c. seismic waves.
d. volcanoes.
____ 28. The southern portion of Pangaea that broke apart about 180 million years ago is known as
a. Pangaea.
c. Gondwana.
b. Panthalassa.
d. Laurasia.
____ 29. Magnetic reversals have helped to support
a. the theory of Pangaea.
b. the age of the Earth.
c. sea-floor spreading.
d. the theory of Gondwana.
____ 30. The San Andreas Fault is an example of a
a. reverse fault.
c. strike-slip fault.
b. normal fault.
d. divergent plate boundary.
____ 31. The part of the Earth that is a liquid is the
a. crust.
c. outer core.
b. mantle.
d. inner core.
____ 32. The part of the Earth on which the tectonic plates are able to move is the
a. lithosphere.
c. mesosphere.
b. asthenosphere.
d. subduction zone.
____ 33. The type of tectonic plate boundary that sometimes has a subduction zone is
a. divergent.
c. convergent.
b. transform.
d. normal.
____ 34. When a fold is shaped like an arch, with the fold in an upward direction, it is called a(n)
a. monocline.
c. syncline.
b. anticline.
d. decline.
____ 35. The type of mountain involving huge sections of the Earth's crust being pushed up into anticlines and
synclines is the
a. folded mountain.
c. volcanic mountain.
b. fault-block mountain.
d. strike-slip mountain.
____ 36. Mid-ocean ridges are associated with
a. divergent boundaries.
c. convergent boundaries.
b. transform boundaries.
d. normal boundaries.
____ 37. Which of the following makes up most of the Earth's mass?
a. crust
c. outer core
b. mantle
d. inner core
____ 38. Which layer of the Earth is made up of tectonic plates?
a. core
c. asthenosphere
b. mesosphere
d. lithosphere
____ 39. Which of the following appears to cause movement of Earth's tectonic plates?
a. convection currents below the lithosphere
b. energy from volcanic activity
c. magnetic-pole reversals
d. faults in mountain ranges
____ 40. Earth's oceanic crust is ____ than the continental crust.
a. thinner but denser
c. thicker but less dense
b. thicker and denser
d. thinner and less dense
____ 41. The diameter of the Earth's core is slightly larger than the diameter of
a. Saturn.
c. Mars.
b. Jupiter.
d. Uranus.
____ 42. The outermost, rigid layer of the Earth is called the
a. mesosphere.
c. asthenosphere.
b. lithosphere.
d. outer core.
____ 43. The soft layer of the mantle on which pieces of the lithosphere move is called the
a. mesosphere.
c. inner core.
b. asthenosphere.
d. outer core.
____ 44. Wegener's continental drift theory suggests that at 180 million years a single landmass gradually broke into
two big pieces called
a. Pangaea and Panthalassa.
c. Laurasia and Eurasia.
b. Gondwana and Laurasia.
d. Panthalassa and Eurasia.
____ 45. ____ is the process in which an oceanic plate sinks and pulls the rest of the tectonic plate with it.
a. Slab pull
c. Ridge push
b. Convection
d. Sea-floor spreading
____ 46. ____ is the process by which hot material from deep within the Earth rises while cooler material near the
surface sinks.
a. Slab pull
c. Ridge push
b. Convection
d. Sea-floor spreading
____ 47. Tectonic movements are generally measured in ____ per year.
a. millimeters
c. meters
b. centimeters
d. kilometers
____ 48. The Mariana trench is the deepest point in the oceans—11,033 m below sea level. This trench was formed at a
____ boundary, where one tectonic plate was subducted beneath the other.
a. divergent
c. convergent
b. transform
d. strike-slip
____ 49. What type of mountains led early explorers to call the rim of the Pacific Ocean the Ring of Fire?
a. folded
c. normal
b. volcanic
d. fault-block
Examine the diagram below, and answer the questions that follow.
____ 50. In the diagram above, which of the following has formed at A?
a. an ocean trench
c. a transform boundary
b. a mid-ocean ridge
d. none of the above
____ 51. In the diagram above, which of the following has formed at B?
a. a folded mountain
c. a volcanic mountain
b. a fault-block mountain
d. none of the above
____ 52. In the diagram above, which type of boundary is occurring at A?
a. a divergent boundary
c. a strike-slip boundary
b. a transform boundary
d. a convergent boundary
____ 53. In the diagram above, which type of tectonic plate motion is occurring at A?
a. ridge push
c. convection
b. slab pull
d. sea-floor spreading
____ 54. In which layer of the Earth are convection currents believed to occur?
a. outer core
c. the lithosphere
b. mesosphere
d. the asthenosphere
____ 55. Which of the following was NOT used as evidence to support the theory of continental drift?
a. the existence of convection currents
b. the similarity of fossils found on continental coasts
c. the close fit of continental coastlines
d. the matching of glacial grooves on different continents
Chapter 7 Practice Test
Answer Section
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