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  1. True or False The volcano shown with its long, gentle slopes would best be described as a shield volcano. X

  2. ANSWER? Click arrow for next question

  3. True or False Magma erupts through an opening in Earth’s crust called a vent. X

  4. ANSWER? Click arrow for next question

  5. True or False Volcanoes associated with convergent plate boundaries form the Circum-Pacific and the Mediterranean Belts. X

  6. ANSWER? Click arrow for next question

  7. True or False Composite volcanoes are made of basaltic lava. X

  8. ANSWER? Click arrow for next question

  9. True or False Cinder-cone volcanoes have steep sides and are generally the smallestvolcanoes. X

  10. ANSWER? Click arrow for next question

  11. True or False Temperature and pressure decrease with depth beneath Earth’s surface. X

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  13. True or False A pluton is an intrusive metamorphic rock body formed from magma. X

  14. ANSWER? Click arrow for next question

  15. True or False The hotter the magma or lava, the greater is its viscosity. X

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  17. True or False Lava that has low viscosity moves slower than lava with high viscosity X

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  19. True or False All volcanoes form at plate boundaries. X

  20. ANSWER? Click arrow for next question

  21. a. Silica b. Tephra c. pyroclastic d. viscosity Internal resistance to flow is X

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  23. a. Caldera b. Pluton c. Tephra d. Pyroclastic material Depression that forms when the top or side of a volcano collapses into the magma chamber is a X

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  25. Opening in Earth’s crust through which lava erupts a. Caldera b. Crater c. Pluton d. Vent X

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  27. a. shields, cinder-cones, and composites b. vents, craters, and calderas c. dust, ash, lapilli, volcanic blocks, and volcanic bombs d. batholiths, stocks, sills, dikes, and laccoliths Types of plutons include ____. X

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  29. Using the diagram to the right, which letter represents the crater associated with the volcano? a. A b. B c. C d. D X

  30. ANSWER? Click arrow for next question

  31. Using the diagram to the right, which letter represents the magma chamber associated with the volcano? a. A b. B c. C d. D X

  32. ANSWER? Click arrow for next question

  33. Bowl-shaped depression around a vent at the top of a volcano is a a. Caldera b. Crater c. Pluton d. Vent X

  34. ANSWER? Click arrow for next question

  35. According to the diagram, which Hawaiian Island is the oldest? a. Loihi b. Hawaii c. Kauai d. Molokai X

  36. ANSWER? Click arrow for next question

  37. Broad, gently sloping sides a. shield volcano b. cinder-cone volcano c. composite volcano X

  38. ANSWER? Click arrow for next question

  39. Made of layers of tephra and lava a. shield volcano b. cinder-cone volcano c. composite volcano X

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  41. Steep-sided a. shield volcano b. cinder-cone volcano c. composite volcano X

  42. ANSWER? Click arrow for next question

  43. Largest of the volcanoes a. shield volcano b. cinder-cone volcano c. composite volcano X

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  45. Forms from layers of basaltic lava a. shield volcano b. cinder-cone volcano c. composite volcano X

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  47. Forms as tephra ejected high into the air fall back to Earth and pile around the vent a. shield volcano b. cinder-cone volcano c. composite volcano X

  48. ANSWER? Click arrow for next question

  49. Forms in the upper mantle a. basaltic magma b. andesitic magma c. rhyolitic magma X

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