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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See sample questions for grade 10
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?
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.
Name the three main types of volcanoes.
What is the difference between magma and lava?
