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Questions and Answers
Which of the following is NOT a characteristic of an extinct volcano?
Which of the following is NOT a characteristic of an extinct volcano?
What is the term used to describe the sloping side of a volcano?
What is the term used to describe the sloping side of a volcano?
Which of the following volcanoes forms a broad, slightly domed structure resembling a warrior's shield?
Which of the following volcanoes forms a broad, slightly domed structure resembling a warrior's shield?
What is the term for the highest point of a mountain or volcano?
What is the term for the highest point of a mountain or volcano?
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Which of the following is NOT a location mentioned in the text?
Which of the following is NOT a location mentioned in the text?
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What is the primary factor that causes molten rock to erupt onto the surface of a planet?
What is the primary factor that causes molten rock to erupt onto the surface of a planet?
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What is the name given to a large pool of liquid rock beneath the surface of the Earth where magma is stored?
What is the name given to a large pool of liquid rock beneath the surface of the Earth where magma is stored?
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What is the bowl-shaped depression that forms directly above the vent of a volcano called?
What is the bowl-shaped depression that forms directly above the vent of a volcano called?
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What is the difference between magma and lava?
What is the difference between magma and lava?
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What is the largest caldera in the world, discovered in 2019?
What is the largest caldera in the world, discovered in 2019?
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What does the term "volcanology" refer to?
What does the term "volcanology" refer to?
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What organization in the Philippines is responsible for monitoring volcanic activity?
What organization in the Philippines is responsible for monitoring volcanic activity?
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What is the process of molten rock erupting onto the surface called?
What is the process of molten rock erupting onto the surface called?
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Which type of volcano is characterized by a gentle slope and a wide base?
Which type of volcano is characterized by a gentle slope and a wide base?
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Which of the following volcanoes is classified as a Cinder Cone based on the information provided?
Which of the following volcanoes is classified as a Cinder Cone based on the information provided?
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What is the primary defining characteristic of a volcanic eruption?
What is the primary defining characteristic of a volcanic eruption?
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Which of these options accurately describes the characteristics of a Composite Volcano?
Which of these options accurately describes the characteristics of a Composite Volcano?
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What is the primary material responsible for the formation of a Cinder Cone?
What is the primary material responsible for the formation of a Cinder Cone?
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Which of the given volcanoes is classified as a Composite Volcano?
Which of the given volcanoes is classified as a Composite Volcano?
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What is the difference between a volcanic eruption and a volcanic vent?
What is the difference between a volcanic eruption and a volcanic vent?
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What is a 'stratovolcano' and how does it relate to the information provided?
What is a 'stratovolcano' and how does it relate to the information provided?
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What occurs when hot water reaches the surface?
What occurs when hot water reaches the surface?
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What is the function of the cooling tower in the process described?
What is the function of the cooling tower in the process described?
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Which statement correctly differentiates between weather and climate?
Which statement correctly differentiates between weather and climate?
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What happens to the cooled water after it is condensed from steam?
What happens to the cooled water after it is condensed from steam?
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What is the ultimate purpose of the cycle described in the content?
What is the ultimate purpose of the cycle described in the content?
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What characterizes a phreatic eruption?
What characterizes a phreatic eruption?
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What is the main composition of lahar?
What is the main composition of lahar?
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Which eruption type is characterized by a periodic weak to violent eruption of lava fountains?
Which eruption type is characterized by a periodic weak to violent eruption of lava fountains?
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What is primarily affected by the temperature of the magma?
What is primarily affected by the temperature of the magma?
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Which eruption is excessively explosive and involves gas and pyroclastic materials?
Which eruption is excessively explosive and involves gas and pyroclastic materials?
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What does high viscosity magma typically create?
What does high viscosity magma typically create?
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In general, what initiates volcanic eruptions?
In general, what initiates volcanic eruptions?
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What causes a phreatomagmatic eruption?
What causes a phreatomagmatic eruption?
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What element is NOT one of the main components of magma?
What element is NOT one of the main components of magma?
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What is the effect of high temperature on the viscosity of magma?
What is the effect of high temperature on the viscosity of magma?
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What effect does an increase in altitude generally have on temperature?
What effect does an increase in altitude generally have on temperature?
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Which of the following best describes the impact of latitude on climate?
Which of the following best describes the impact of latitude on climate?
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What is the primary driving factor behind the Coriolis Effect?
What is the primary driving factor behind the Coriolis Effect?
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How do ocean currents generally affect climate?
How do ocean currents generally affect climate?
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Which of the following gases is NOT considered a greenhouse gas?
Which of the following gases is NOT considered a greenhouse gas?
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What is the main consequence of climate change on glaciers?
What is the main consequence of climate change on glaciers?
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Which of the following is a natural cause of climate change?
Which of the following is a natural cause of climate change?
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What characterizes a temperate climate?
What characterizes a temperate climate?
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What term describes the warm, moist air that is lifted over the windward side of a mountain?
What term describes the warm, moist air that is lifted over the windward side of a mountain?
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Which phenomena are associated with extreme weather conditions caused by climate patterns?
Which phenomena are associated with extreme weather conditions caused by climate patterns?
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Which of the following would NOT be considered an anthropogenic cause of climate change?
Which of the following would NOT be considered an anthropogenic cause of climate change?
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What is meant by the term 'topography'?
What is meant by the term 'topography'?
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How does increased concentration of greenhouse gases affect global temperatures?
How does increased concentration of greenhouse gases affect global temperatures?
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What typically happens during the La Niña phase?
What typically happens during the La Niña phase?
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Flashcards
Summit
Summit
The highest point of a mountain or volcano, also called apex.
Flank
Flank
The sloping side of a volcano or mountain.
Base
Base
The bottom lowest part of a volcano that supports its structure.
Extinct Volcano
Extinct Volcano
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Shield Volcano
Shield Volcano
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Volcanism
Volcanism
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Magma Reservoir
Magma Reservoir
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Crater
Crater
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Caldera
Caldera
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Magma
Magma
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Lava
Lava
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Volcanology
Volcanology
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Volcanologist
Volcanologist
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Gases Released
Gases Released
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Steam Generation
Steam Generation
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Turbine Function
Turbine Function
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Cooling Tower Role
Cooling Tower Role
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Water Injection Well
Water Injection Well
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Composite Volcano
Composite Volcano
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Cinder Cone Volcano
Cinder Cone Volcano
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Volcanic Eruption
Volcanic Eruption
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Perfect Cone
Perfect Cone
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Lava Cinders
Lava Cinders
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Strato
Strato
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Eruption Types
Eruption Types
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Phreatic Eruption
Phreatic Eruption
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Phreatomagmatic Eruption
Phreatomagmatic Eruption
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Temperature in Magma
Temperature in Magma
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Viscosity
Viscosity
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Inverse Relationship of Temperature and Viscosity
Inverse Relationship of Temperature and Viscosity
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Silica Content
Silica Content
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Strombolian Eruption
Strombolian Eruption
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Plinian Eruption
Plinian Eruption
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Climatology
Climatology
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Latitude
Latitude
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Altitude
Altitude
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Ocean currents
Ocean currents
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Coriolis Effect
Coriolis Effect
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Windward side
Windward side
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Leeward side
Leeward side
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Greenhouse Effect
Greenhouse Effect
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Global warming
Global warming
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Climate change
Climate change
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El Niño
El Niño
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La Niña
La Niña
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Natural causes of climate change
Natural causes of climate change
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Anthropogenic causes of climate change
Anthropogenic causes of climate change
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Effects of climate change
Effects of climate change
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Study Notes
Volcanism, Magma, and Geothermal Energy
- Volcanism is the process of molten rock (magma) erupting onto a planet's surface. It occurs when internal heat causes surface rocks to melt. This often happens where tectonic plates move.
- Volcanoes are natural openings in the Earth's surface where molten rock, gases, smoke, and ash are ejected. They contain internal parts like magma reservoirs (magma chambers), craters (depression above the vent), caldera (large depression from collapse), throat (volcano entrance), conduit (underground magma passage), and lava flow (molten rock on the surface).
Internal Parts of a Volcano
- Magma Reservoir: A large pool of liquid rock beneath the surface, storing magma before eruption
- Crater: A bowl-shaped depression above the volcano's vent.
- Caldera: A large depression formed when a volcano erupts and its summit collapses
Types of Volcanoes
- Active Volcano: Showing signs of eruption in the last 50-10,000 years
- Inactive (Dormant) Volcano: Erupted previously and not erupted in 10,000 years
- Extinct Volcano: No record of eruption, and not anticipated to erupt
Parts of a Volcano (External Features)
- Summit: Highest point
- Flank: Sloping side of the volcano
- Base: Bottom part of the volcano
- Vent: Opening where magma, gases, and other materials erupt
- Ash Cloud: Plume of volcanic material during eruption
- Solidified Lava: Hardened/stacked lava from previous eruptions
- Ash: Collection of solid particles from volcanic eruptions
Types of Volcanoes (Based on Shape)
- Composite Volcano (Stratovolcano): Tall peak, alternating layers of lava and cinders, sloped structure
- Shield Volcano: Largest volcanic structure, formed by accumulated layers of lava, broad gently sloped cone shape
- Cinder Cone Volcano: Narrow base, steep slope, formed from cinders and ash, characterized by short-lived explosive eruptions
Volcanic Eruptions
- Phreatic (Steam-blast or Hydrothermal) Eruption: Short-lived eruption created by water interaction with hot rock
- Strombolian Eruption: Periodic, weak to violent eruptions characterized by lava fountains
- Vulcanian Eruption: Taller eruptions, columns reaching 20 km high, pyroclastic flow, ashfall
- Plinian Eruption: Excessively explosive eruption creating large amounts of gas and pyroclastic materials
Magma
- Molten or partially molten rock located beneath the Earth's surface; different compositions define different types (mafic, intermediate, felsic)
- Vary in silica content (low in mafic, high in felsic) which affects viscosity, appearance, and explosiveness during eruption.
Lava
- Magma that reaches the Earth's surface
Geothermal Energy
- Renewable energy derived from the Earth's internal heat
- Geothermal power plants use the heat to produce steam, which powers turbines to generate electricity
- Geothermal heat pumps utilize constant underground temperatures to efficiently heat or cool buildings.
Geothermal Power Plants
- Heat Source: Magma located deep beneath the Earth's crust
- Reservoir: A permeable rock layer storing hot water
- Caprock: A layer that prevents water from escaping the reservoir
- Water (Working Fluid): Acts as a medium within the cycle
- Production Well: Pumps hot water upward
- Turbine: Spins due to steam from hot water, turning the generator
- Generator: Converts mechanical energy (from turbine) to electrical energy
- Cooling Tower: Condenses steam back into water, returning it to the ground
Factors Affecting Climate
- Latitude (horizontal): Sun's rays strike at different angles, impacting temperature variances, tropical/temperate/polar zones result
- Altitude: Higher places generally have lower temperatures
- Ocean Currents: The movement of water globally, transporting heat and affecting temperature
- Distance from Bodies of Water: Coastal areas tend to have more moderate temperatures compared to inland areas
- Topography: Landforms & elevation differences affect local weather patterns
- Weather: The short-term state of the atmosphere, including temperature, precipitation, humidity, and wind (Meteorology - study of weather)
- Climate: Overall weather patterns over a long period of time (Climatology - study of long-term climate)
Greenhouse Effect
- A natural warming process where greenhouse gases (CO2, CH4, N2O, HFC, SF6, PFC, and water vapor) trap heat from Earth.
- This maintains the planet's temperature suitable for life.
- Excessive amount of greenhouse gases from human activities (anthropogenic) results in enhanced greenhouse effect, leading to global warming and climate change
Climate Change
- Long-term shifts in temperature and weather patterns, influenced by factors such as natural occurrences and human activities.
- Human activities are increasing greenhouse gas quantities resulting in global warming.
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Description
Explore the fascinating processes of volcanism, magma, and geothermal energy. This quiz covers the internal parts of a volcano, including magma reservoirs, craters, and the different types of volcanoes. Test your knowledge on these geological phenomena and understand Earth's dynamic systems.