Volcanoes and Volcanic Activity
Physics ⇒ Earth and Space Physics
Volcanoes and Volcanic Activity starts at 7 and continues till grade 12.
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Describe one positive effect of volcanic activity on the environment.
Describe one way in which volcanic eruptions can affect the global climate.
Describe the process of how a volcanic eruption occurs, starting from the movement of magma.
Explain how the viscosity of magma affects the explosiveness of a volcanic eruption.
Explain the role of pressure in the eruption of a volcano.
Explain why some volcanoes erupt more frequently than others.
Explain why volcanic eruptions are more common at convergent and divergent plate boundaries than at transform boundaries.
A volcano emits 2.5 × 106 kg of ash during an eruption. If the ash covers an area of 5 × 104 m2, what is the average mass of ash per square meter?
Which of the following best describes a dormant volcano? (1) Currently erupting (2) Has not erupted in recorded history and is unlikely to erupt again (3) Not currently erupting but may erupt in the future (4) Erupts continuously
Which of the following best describes a volcano? (1) A mountain formed by the accumulation of lava and ash (2) A deep ocean trench (3) A type of earthquake (4) A weather phenomenon
Which of the following best explains why volcanic eruptions can be predicted to some extent? (1) Eruptions are completely random (2) Changes in seismic activity, gas emissions, and ground deformation can be monitored (3) Eruptions only occur at night (4) Volcanoes erupt on a fixed schedule
Which of the following is a sign that a volcano may soon erupt? (1) Decrease in seismic activity (2) Ground deformation (3) Decrease in gas emissions (4) Lower temperatures near the vent
A volcano that has erupted in the last 10,000 years is classified as _______.
Fill in the blank: The _______ is a large depression formed when a volcano collapses after an eruption.
Fill in the blank: The movement of tectonic plates can create _______ zones, where one plate is forced under another, often leading to volcanic activity.
Fill in the blank: The study of volcanoes is called _______.
True or False: All volcanoes are found at tectonic plate boundaries.
True or False: Lava flows are generally more dangerous to human life than pyroclastic flows.
True or False: The Ring of Fire is an area with a high concentration of volcanoes around the Pacific Ocean.
True or False: Volcanic ash can disrupt air travel by damaging aircraft engines.
