1. How do you call the release of magma from a volcano? A. earthquake B. epicenter C. eruption (D. hotspot 2. What do you call the area below the crust where magma is stored? (А. magma chamber C. magma dome B. Magma crater D. magma vent 3. Which is a warning sign of volcanic eruption? A) ground deformation C. increased seismic activity B. gas emission D. All are warning signs. 4. Good can come from a volcanic eruption. Which of the following is a disadvantage of an eruption? A. fertile soil C. increased tourism B. geothermal energy D. land destroyed 5. What forms at the top of a volcano after an eruption? A crater B. magma chamber C. pyroclastic flow D. vent 6. Why does Earth need volcanoes? A. Volcanoes help Earth keep hotspots. B. Volcanoes help Earth retain heat as an energy source. C. Volcanoes help Earth release internal heat and pressure. D. Volcanoes provide economic development for the people living on Earth. 7. Which of the following is not an indicator of voicanic eruption? A. Weather patterns C. Release of different gases from the volcano B. Earthquake frequency D. Swelling or changing of shapes of the volcano 8. What are the required factors for an explosive volcanic eruption? A. Thick magma C. high gas pressure B. High silica content/concentration D. All are required factors. 9. What magma type is the most vicious?
