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10 cards from this deck
Molten rock beneath Earth's surface
Magma that reaches the surface
It's less dense than solid rock, so it rises naturally
Thin, runny magma; gentle lava flows (e.g. Hawaii)
Thick, sticky magma; violent explosion (e.g. Mt St Helens)
Magma fragments blasted into air in explosive eruptions
Mudflows from hot volcanic material mixing with water
Up to 0.5°C global temperature reduction
'Year without a summer', 3°C cooling in N hemisphere
Break down to create fertile, nutrient-rich agricultural soils
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