This quiz works best with JavaScript enabled. Home > Indian Geography > Earth > Volcanoes – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Volcanoes Quiz 13 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Magma that forces across rock layers hardens into a A) Sill. B) Volcanic neck. C) Dike. D) Batholith. Show Answer Correct Answer: C) Dike. 2. What is a hazard from an explosive eruption? A) Pyroclastic flow. B) Ash cloud. C) Volcanic bombs. D) All of these options. Show Answer Correct Answer: D) All of these options. 3. A shield volcano ..... A) Is built from layers of lava and volcanic ash. B) Consists primarily of cinders and volcanic rock. C) Composed almost entirely of thin lava. D) None of above. Show Answer Correct Answer: C) Composed almost entirely of thin lava. 4. Molten material that reaches the surface. A) Earthquake. B) Tsunami. C) Magma. D) Lava. Show Answer Correct Answer: D) Lava. 5. Mount St. Helens is a volcano that erupted with great force in 1980. Which phrase best describes this eruption? A) Quiet eruption. B) Gentle lava flow. C) Magma low in silica. D) High viscosity magma. Show Answer Correct Answer: D) High viscosity magma. 6. Why do volcanoes form at convergent boundaries? A) Pressure is released making the melting point of the mantle rock lower. B) Water lowers the melting point of the mantle rock. C) The temperature of the rock is increased. D) Pressure on the mantle rock is increased. Show Answer Correct Answer: B) Water lowers the melting point of the mantle rock. 7. Where two plates converge, one sinks below the other. Most land volcanoes occur near here. A) Boundary line. B) Fault. C) Convection current. D) Subduction zone. Show Answer Correct Answer: D) Subduction zone. 8. What is it called when magma erupts out of the top of the mountain and lava flows down the side? A) Volcanic Eruptions. B) Earthquakes. C) Floods. D) Weathering. Show Answer Correct Answer: A) Volcanic Eruptions. 9. Mauna Loa erupted how many times since 1832? A) 39. B) 42. C) 49. D) 57. Show Answer Correct Answer: A) 39. 10. Taal volcano erupted in the year 1965 due to contact of water and magma. How can this volcanic eruption be classified? A) Phreatic. B) Vulcanian. C) Strombolian. D) Phreatomagmatic. Show Answer Correct Answer: D) Phreatomagmatic. 11. What is the definition of dormant? A) Sleeping. B) Extinct. C) Active. D) Invisible. Show Answer Correct Answer: A) Sleeping. 12. This may result in the formation of caldera or volcano-tectonic depressions. A) Strombolian. B) Plinian. C) Vulcanian. D) Phreatic. Show Answer Correct Answer: B) Plinian. 13. A volcano erupts quietly if its magma is which of the following A) Cool. B) Solid. C) Low in silica. D) High in silica. Show Answer Correct Answer: C) Low in silica. 14. The composition of magma determines its ..... A) Viscosity. B) Darkness. C) Color. D) None of the above. Show Answer Correct Answer: A) Viscosity. 15. This region contains 75% of planet's volcanoes: A) Ring of Fire. B) Iceland. C) South America. D) Bermuda Triangle. Show Answer Correct Answer: A) Ring of Fire. 16. What kind of volcano is made of alternating layers of lava and tephra? (also called a composite volcano) A) Composing. B) Stratovolcano. C) Cinder. D) Shield. Show Answer Correct Answer: B) Stratovolcano. 17. Which of the following describes a volcano? A) Volcano is a cone shape. B) Volcano produces lava during volcanic eruption. C) Volcano is a mountain. D) All of the above. Show Answer Correct Answer: D) All of the above. 18. What are places in the interior of plates where volcanoes occur? A) Effusive zones. B) Fault lines. C) Hot spots. D) National parks. Show Answer Correct Answer: C) Hot spots. 19. The higher the viscosity of a fluid, the ..... it flows. A) Faster. B) Slower. C) Higher. D) Slicker. Show Answer Correct Answer: B) Slower. 20. How many kinds of eruptions do they have? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. ← PreviousNext →Related QuizzesIndian Geography QuizzesVolcanoes Quiz 1Volcanoes Quiz 2Volcanoes Quiz 3Volcanoes Quiz 4Volcanoes Quiz 5Volcanoes Quiz 6Volcanoes Quiz 7Volcanoes Quiz 8Volcanoes Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books