This quiz works best with JavaScript enabled. Home > Indian Geography > Earth > Volcanoes – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Volcanoes Quiz 18 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Where do volcanoes usually form? A) Within 10 miles of the ocean. B) Between Earth's mantle and core. C) At fault lines between tectonic plates. D) Within the boundaries of the United States. Show Answer Correct Answer: C) At fault lines between tectonic plates. 2. Why does magma form at divergent boundaries? A) Water lowers the melting temperature of the mantle rock. B) Lowering the pressure lowers the melting point of the mantle rock. C) The temperature is increased. D) The pressure is increased. Show Answer Correct Answer: B) Lowering the pressure lowers the melting point of the mantle rock. 3. A liquid with high viscosity A) Is thin and flows easily. B) Is dense and flows slowly. C) Has particles with very little friction between them. D) Is pahoehoe. Show Answer Correct Answer: B) Is dense and flows slowly. 4. The formation of the Hawaiian Islands is one example of ..... A) Volcanic activity forming over a hot spot. B) Volcanoes forming along plate boundaries. C) The Ring of Fire. D) Continental drift. Show Answer Correct Answer: A) Volcanic activity forming over a hot spot. 5. Factors that change volcanic eruptions ..... A) Time of day and time of year. B) The number of side vents and craters a volcano has. C) The type of gas and level of viscosity. D) Moana and Maui. Show Answer Correct Answer: C) The type of gas and level of viscosity. 6. The eruption of Mount Etna in Italy in 2002 is an example of what volcanic eruption? A) Plinian. B) Strombolian. C) Vulcanian. D) Phreatic. Show Answer Correct Answer: B) Strombolian. 7. If a volcano's magma is high in silica, the volcano will A) Erupt quietly. B) Remain dormant. C) Produce dark-colored lava. D) Erupt explosively. Show Answer Correct Answer: D) Erupt explosively. 8. What is the spread of lava as it pours out of a vent? A) Magma chamber. B) Pipe. C) Lava flow. D) Crater. Show Answer Correct Answer: C) Lava flow. 9. A wide, gently sloping mountain made of layers of lava and formed by quiet eruptions. A) Cinder cone. B) Composite volcano. C) Shield volcano. D) Strato-volcano. Show Answer Correct Answer: C) Shield volcano. 10. Which population is in the most danger for damage caused by an earthquake? A) A population living near an active fault zone. B) A population living on an island. C) A population living at a high elevation in the mountains. D) A population living in a tropical climate. Show Answer Correct Answer: A) A population living near an active fault zone. 11. The main hazard from a quiet volcanic eruption is ..... A) Volcanic gases. B) Lava Flows. C) Pyroclastic Flows. D) Geysers. Show Answer Correct Answer: B) Lava Flows. 12. Which of the following terms are used to describe a volcano that is has not recently erupted, but may in the future? (aka sleeping volcano) A) Composite volcano. B) Active volcano. C) Extinct volcano. D) Dormant volcano. Show Answer Correct Answer: D) Dormant volcano. 13. What part of the volcano allows magma to flow to the surface? A) Vent. B) Pipe. C) Magma Chamber. D) Crater. Show Answer Correct Answer: B) Pipe. 14. An earthquake occurs when forces and stress along a fault build up, causing the rock to break at a weak point along the fault and release energy. How does this energy move through the Earth? A) As seismic waves. B) As sound vibrations. C) As heat waves. D) As light radiation. Show Answer Correct Answer: A) As seismic waves. 15. What provides the force that causes a volcano to become explosive? A) Mafic flows. B) Magma density. C) Dissolved gases trapped in magma. D) Extreme heat. Show Answer Correct Answer: C) Dissolved gases trapped in magma. 16. Once magma reaches the Earth's surface it is called ..... A) Silica. B) Lava. C) Rock. D) Molten. Show Answer Correct Answer: B) Lava. 17. How fast a lava is able to flow is based on its A) Location. B) Viscosity. C) Amount. D) Weight. Show Answer Correct Answer: B) Viscosity. 18. What means "ground or land" A) Volcano. B) Earth. C) Border. D) Ocean. Show Answer Correct Answer: B) Earth. 19. The biggest volcano is located ..... A) On Mars. B) On Earth. C) On Jupiter. D) None of above. Show Answer Correct Answer: A) On Mars. 20. A pyroclastic flow typically occurs during a(n) ..... eruption. A) Quiet. B) Effusive. C) Offensive. D) Explosive. Show Answer Correct Answer: D) Explosive. ← 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