Froggy Jumps Volcanic Eruption QuizVersión en línea Test your volcano knowledge. por Gener Pelago 1 What is a Plinian eruption best known for? a A tall eruption column with pumice and ash b Smooth magma extrusion forming lava domes c Constant lava flow with lava tubes 2 Which eruption type is typically associated with lava flows? a Explosive eruption b Effusive eruption c Pyroclastic surge 3 Pyroclastic flows move fastest as a deadly mix of? a Pure lava lava b Hot gases and volcanic ash c Liquid water and steam 4 Which term describes a crater formed by a collapsing volcano? a Venturi b Caldera c Crater lake 5 Which scale measures the size of volcanic eruptions? a Richter scale b Saffir-Simpson scale c VEI (Volcanic Explosivity Index) 6 What magma type is typically linked to high-viscosity eruptions? a Rhyolitic/Andesitic magma b Mafic magma with low viscosity c Basaltic magma 7 A volcanic eruption that ejects abundant pumice is usually? a Seismic-only b Effusive c Explosive 8 What feature often forms from repeated explosive eruptions? a Cinder cone only b Shield volcano c Stratovolcano 9 What volcanic product cools into glassy rock when quenched suddenly? a Obsidian (volcanic glass) b Basalt rock c Pumice 10 Which geographic setting commonly hosts explosive eruptions? a Subduction zones b Mid-ocean ridges c Hotspot plumes only
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