1) This refers to the chain of volcanoes along the pacific plate. a) Pacific of Fire b) Ring of Pacific  c) Ring of Fire d) Chain of Pacific 2) PHIVOLCS means ___ a) Philippine Volcanology and Seismology b) Philippine Institute of Volcanology and Science c) Philippine Institute of Volcanoes and Seismology d) Philippine Institute of Volcanology and Seismology 3) It has a record of eruption within the last 600years or those that erupted 10,000 years ago a) Active Volcanoes b) Inactive Volcanoes c) Present Volcanoes d) Strong Volcanoes 4) Have not erupted for the last 10,000 years and their physical form is being changed by agents of weathering and erosion a) Active Volcanoes b) Inactive Volcanoes c) Present Volcanoes d) Strong Volcanoes 5) A reservoir where magma is stored beneath the volcano   a) Ash Cloud b) Crater c) Conduit d) Magma Chamber 6) Mass of tiny volcanic rock fragments, dust, and gases that are released into the air a) Ash Cloud b) Conduit c) Lava d) Sill 7) A pipe-like structure that connects the magma chamber to the surface a) Cone b) Base c) Magma Chamber d) Conduit 8) Flat rock formation that forms when molten magma cools and soldifies in a crack or fissure a) Crater b) Sill c) Ash Cloud d) Conduit 9) The bowl-shaped depression at the top of the volcano a) Slope b) Volcano c) Crater d) Sill 10) Steep, conical-shaped hill or mountain formed by layers of volcanic material a) Cone b) Summit c) Volcano d) Lava 11) Molten rock that flows from a volcano during an eruption a) Lava b) Crater c) Cone d) Magma Chamber 12) It is the top of a volcano a) Slope b) Base c) Crater d) Summit 13) It is where the lava flows a) Summit b) Base c) Volcano d) Slope 14) The bottom part of the volcano a) Base b) Slope c) Summit d) Cone 15) The 2 types of summit are : a) Crater & Caldera b) Slope & Base c) Crater & Slope d) Crater & Caldero 16) It is formed when a part of the wall collapses following an explosive eruption a) Caldera b) Crater c) Summit d) Slope 17) Which of the following is not part of the primary factors that affects the volcanoes eruptive style?   a) Magma's Temperature b) Chemical Composition c) The amount of dissolved gases it contains  d) Volcanoes' Temparature 18) It is the property of the material's resistance to flow. It is also described as the liquid's thickness and stickiness. a) Viscosity b) Geothermal Energy c) Hydrothermal d) Geothermal Power Plant 19) It is formed by the accumulation of lava that oozes out from the volcano. a) Composite Cones b) Cinder Cones c) Shield Volcanoes  d) Wide Cones 20) It is built from ejected lava fragments. a) Cinder Cones b) Shield Volcanoes c) Composite Cones d) Wide Cones 21) Also known as stratovolcanoes that are large, nearly perfect sloped structure formed from alternate solidification of both lava and pyroclastic deposits. a) Cinder Cones b) Shield Volcanoes c) Composite Cones d) Wide Cones 22) A stream-driven eruption as the hot rocks come in contact with water a) Phreatic or Hydrothermal b) Phreatomagmatic c) Strombolian d) Plinian 23) It is short-lived, characterized by ash columns but may be an onset of a larger eruption. Example is our Taal Volcano in Batangas. a) Phreatic or Hydrothermal b) Phreatomagmatic c) Vulcanian d) Plinian 24) A violent eruption due to the contact between water and magma. a) Phreatic or Hydrothermal b) Phreatomagmatic c) Plinian d) Strombolian 25) A period weak to violent eruption characterized by fountain lava, just like the Irazu Volcano in Costa Rica. a) Phreatic or Hydrothermal b) Phreatomagmatic c) Vulcanian d) Strombolian 26) Characterized by tall eruption columns that reach up to 20km high with pyroclastic flow and ashfall tephra like that of Paricutin Volcano in Mexico. a) Phreatic or Hydrothermal b) Preatomagmatic c) Vulcanian d) Plinian 27) Excessively explosive type of eruption of gas and pyroclastics, just like our Pinatubo Volcano in Zambales a) Preatic or Hydrothermal b) Preatomagmatic c) Vulcanian d) Plinian 28) It is the heat of the Earth that warms up water which is trapped in rock formations beneath its surface. a) Viscosity b) Geothermal Energy c) Topography d) Geothermal Power Plant 29) The heat from deep inside the Earth is used to produce steam to generate electricity a) Geothermal Energy b) Geothermal Power Plants  c) Geothermal Heat Pumps d) Geothermal Power Pumps 30) It uses the heat coming from close to the Earth's surface to heat water or provide heat for buildings a) Geothermal Energy b) Geothermal Power Plants c) Geothermal Heat Pumps d) Geothermal Power Pumps

VOLCANOES - SCIENCE 9

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