Types of Volcanoes and Its Distribution

Types of Volcanoes and Its Distribution 1. When a volcano ejects acid lava, the eruption is usually A. light and less violent B. soft and less violent C. loud but less violent D. loud and more violent 2. In some eruptions, mudflows are forced over the A. Earth's mantle B. Ocean bed C. Earth's surface D. Earth's core 3.The magma which is forced onto the Earth's surface is known as A. Vent B. Cone C. Lava D. Magma Chamber 4. An example of composite volcanoes is A. Mount Everest B. Puy de Dome C. Mauna Loa D. Mount Merapi 5. During eruption, the volcanic material is A. blown to some meters B. blown to many kilometers C. blown to some inches D. blown to some feet 6. Volcanoes are generally found where _______ pull apart or are coming together: A. Intraplates B. C. D. Tectonic plates Earth's crust None of these 7. Which ridge has examples of volcanoes caused by "divergent tectonic plates" pulling a part? A. Pacific ring of fire B. Mid Atlantic Ridge C. Both (a) and (b) D. None of these 8. Which one has examples of volcanoes caused by 'convergent tectonic plate, coming together? A. Mid Atlantic ridge B. Pacific ring of fire C. Both (a) and (b) D. None of these 9. Volcanoes can also form where there is stretching of the earth's ______ and where the _____ goes thin. A. Surface, crust B. Plate, surface C. Crust, crust D. Plate, crust 10. Volcano forms by the stretching earth's crust and the crust goes this this phenomenon is called: A. Interaplate volcanism B. Non-hot interpolate C. Hot spot intraplate D. None of these 11. A. B. C. D. Volcanoes can also be caused by ______ so called 'hot spots'. Mantle plumes Ash Gases None of these 12. A. B. C. D. Hotspot volcanoes can be found on the islands like: Malaysian Indonesian Hawaiian None of these 13. A. B. C. D. Hotspot volcano is also found else where is the solar system especially on: Sun and moons Rocky planets and moons Both (a) and (b) None of these 14. A. B. C. D. Volcanoes are usually located on: Divergent plate boundaries Convergent plate boundaries Hotspots All of them 15. A. B. C. D. The erupted material of volcano consists of: Lava texture Lava composition Both (a) and (b) None of these 16. Volcanic belts form along A. islands in the Pacific Ocean. B. North American mountain ranges. C. the boundaries of Earth’s plates. D. the coast of Antarctica. 17. The volcanoes along converging oceanic plate boundaries may form A. a hot spot. B. a part of the mid-ocean ridge. C. an island arC. D. a subducting plate. 18. The formation of the Hawaiian Islands is one example of A. B. C. D. volcanoes forming over a hot spot. volcanoes forming along plate boundaries. the Ring of Fire. continental drift. 19. What provides the force that causes magma to erupt to the surface? A. the silica in the magma B. dissolved gases trapped in the magma C. gravity in the lithosphere D. the density of the magma 20. If a volcano’s magma is high in silica, the volcano will probably A. erupt quietly. B. remain dormant. C. erupt explosively. D. produce dark-colored lava. 21. The main hazard from a quiet volcanic eruption is A. volcanic gases. B. lava flows. C. geysers. D. pyroclastic flows. 22. If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano? A. It is dormant. B. It is probably about to erupt. C. It is extinct. D. It is a good source of geothermal energy. 23. When many layers of thin, runny lava build up a high, level area, the result is a A. lava plateau. B. shield volcano. C. cinder cone volcano. D. composite volcano. 24. The viscosity of magma depends upon its silica content and its A. color B. temperature. C. magnetism. D. pyroclastic flow. 25. What causes magma to flow upward into any cracks in the rock above it? A. Magma is forced toward the surface by Earth’s rotation. B. Liquid magma is less dense than the solid material around it. C. Magma is drawn through the cracks by the force of gravity. D. Friction within the cracks pulls magma upward.