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Question 1: Silica-rich magma does have a high viscosity, and therefore does not flow easily like ________.
LavaBasaltFlood basaltIgneous rock

Question 2: At the summit of the largest volcano on Earth, ________, is a subsidence caldera called Moku‘āweoweo Caldera.
Loihi SeamountKohala (mountain)Hawaii hotspotMauna Loa

Question 3: A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption such as the ones at Yellowstone National Park in the US and ________ in Scotland.
Aonach EagachBallachulishGlen CoeGlasgow

Question 4: As a result, the magma is much less ________ than the magma of a rhyolitic volcano, and the magma chamber is drained by large lava flows rather than by explosive events.
ViscosityFluid dynamicsSurface tensionRheology

Question 5: Mount Pleasant Caldera (New Brunswick, ________)
United StatesUnited KingdomBarbadosCanada

Question 6: What does the following picture show?

  Aniakchak-caldera, Alaska
  Satellite photograph of the summit caldera on Fernandina Island in the Galapagos archipelago.
  Mt.Pinatubo, Philippines
  Satellite photo of Lake Taupo

Question 7: Blake River Megacaldera Complex (Quebec/Ontario, ________)
BarbadosCanadaUnited KingdomUnited States

Question 8: What does the following picture show?

  Mount Pleasant Caldera, southwestern New Brunswick, Canada
  Landsat image of Lake Toba, on the island of Sumatra, Indonesia. A resurgent dome formed the island of Samosir. (100 kilometres long and 30 kilometres wide, caldera of the world's largest class)
  Crater Lake, Oregon, formed around 5,680 BC

Question 9:

Question 10: La Garita Caldera (________, US)
ColoradoMissouriFloridaUtah
















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