Volcanoes

Question 1

where are most volcanoes found

Answer 1

mid ocean ridges/plate boundaries/hotspots

Question 2

cinder cones

Answer 2

layered

Question 3

domes

Answer 3

low cone

Question 4

maars

Answer 4

volcanoes mix with groundwater

Question 5

calderas

Answer 5

collapse of volcano

Question 6

shield

Answer 6

low cone, low viscosity

Question 7

stratovolcano

Answer 7

steep, layers

Question 8

monogentic

Answer 8

cinder/maars/calderas

Question 9

polgenic

Answer 9

stratovolcanoes/shield

Question 10

volcano death

Answer 10

land (erodes away leaving plug/dyke), ocean (tectonics move and reduce magma supply, forms lagoons)

Question 11

iceland formation

Answer 11

hotspot, magma plume, magma plume rises from mantle and creates islands, helps track how fast plates moving

Question 12

mars volcanoes

Answer 12

fuelled by hotspots

Question 13

basaltic lava

Answer 13

low viscosity, low silica, effusive, frequent eruptions, shield

Question 14

andesitic/rhyolitic

Answer 14

high viscosity, high silica, rare, caldera (rhyolite), strato (andesitic)

Question 15

most evolved magma

Answer 15

andesitic/rhyolitic

Question 16

gas/viscosity

Answer 16

gas is harder to escape high viscosity

Question 17

strombolian eruption

Answer 17

basaltic, moderately explosive

Question 18

plinian

Answer 18

extremely explosive, ash, vertical explosion

Question 19

ultra-plinian

Answer 19

larger than plian

Question 20

products of volcano

Answer 20

gas, lava, rock, pyroclastic flow, ash, lahars

Question 21

ash can affect…

Answer 21

climate

Question 21

why volcanoes erupt

Answer 21

gas builds up creating pressure/weather/sea level change/earthquakes/nuclear bombs

Question 22

predicting volcanoes

Answer 22

gases, earthquakes, sides tilt