VOLCANIC HAZARD
Quiz by JAYR RUFIN
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19 questions
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- Q1A stream-like flows of incandescent molten rock erupted from a crater.Pyroclastic flowAshfallLava flowsLahar20s
- Q2What is volcanic lava?Molten rocks beneath the Earth's crust.Although volcanoes do throw clouds of ash and dust onto Earth's surfaceVolcanoes can produce clouds of hot gas.Magma bursts through onto Earth's surface as a bright orange liquid called lava.20s
- Q3What is magma?A hot liquid rock found deep below the Earth's surface.Though magma does exist from under the ground, it is not magnetic.Lava is the name given to magma that has spewed out onto the Earth's surface.20s
- Q4When a volcano ejects acid lava, eruption is usuallylight and less violentloud and more violentsoft and less violentloud but less violent20s
- Q5Magma which is forced onto Earth's surface is known asVentMagmaLavaCone20s
- Q6During eruption, volcanic material isblown to some metersblown to some inchesblown to some feetblown to many kilometers20s
- Q7When volcanoes ejects basic lava, eruption is mainlyloudhardviolentquite20s
- Q8Volcanoes that erupt frequently are known asInstinct volcanoesDormant volcanoesExtinct volcanoesActive Volcanoes20s
- Q9Volcanoes that haven't erupted in historic times are known asDormant volcanoesInstinct volcanoesActive volcanoesExtinct volcanoes20s
- Q10It carries a harmful or even poisonous gases.LaharAshfallLavaTsunami20s
- Q11As lava reaches sea water, itspreadshardensliquefiessoftens20s
- Q12Volcanism that takes place at constructive plate boundary on ocean floor is known asEarthquake VolcanismVolcanism at Destructive plate boundaryUnderwater volcanismVolcanism at hotspot20s
- Q13Compared to acid lava, basic lava travelsmore after it solidifiesless before it solidifiesmore before it solidifiesless after it solidifies20s
- Q14Overtime, underwater volcano increases in height to come out of ocean surface to form a/anan islanda cliffan ice berga ridge20s
- Q15Are rapidly flowing thick mixture of volcanic sediments and water usually triggered by intense rainfall.Pyroclastic FlowLahar FlowLava FlowPyroclastic Flow20s