Why Volcanoes Form
Types of Volcanoes
Effects of Volcanic Eruptions
Misc.
100
What is a volcano? A. A chamber in Earth's crust for storing magma. B. A mountain range. C. A vent in Earth's surface through which magma is expelled.
C. A vent in Earth's surface through which magma is expelled.
100
What ia an opening in Earth's crust through which magma is released called? A. lahar B. felsic C. vent
C. vent
100
What is a mudflow formed when volcanic ash and debris mix with water? A. felsic B. lahar C. vent
B. lahar
100
What are volcanically active palces that are not located at tectonic plate boundaries? A. hot spots B. mafic C. lahar
A. hot spots
200
Where are many volcanoes found? A. on plate boundaries B. in mantle plumes C. at Earth's core
A. on plate boundaries
200
What is molten rock flowing on Earth's surface called A. mid-ocean ridges B. lava C. shield volcano
B. lava
200
What is liquid that is heated to hundreds of degrees and contains heat energy? A. magma B. lahar C. geothermal water
C.geothermal energy
200
What is igneous rock that is rich in feldspar and silica? A. lahar B. mafic C. feldspar
C. feldspar
300
What is subduction? A. tectonic plates moving away from each other B. one tectonic plate moving under another C. tectonic plates moving side by side
B. one tectonic plate moving under another
300
What are mountain chains found at divergent boundaries? A. mid-ocean ridges B. lava C. cinder cone volcano
A. mid-ocean ridges
300
Which of the following would you expect to see after an explosive eruption? A. clear skies. B. darkened skies C. warmer temperatures
B. darkened skies
300
What is a rift zone? A. a closed vent B. a set of deep cracks that form where plates separate C. a hot spot
B. a set of deep cracks that form where plates separate
400
What is melted rock below Earth's surface called? A. magma B. geothermal water C. cinder cone volcano
A. magma
400
What is a large volcano; built of many layers? A. cinder cone volcano B. shield volcano C. mid-ocean ridge
B. shield volcano
400
Which of the following statements decribes a climate change caused by a volcanic eruption? A. ash blocks sunlight, causing temperatures to drop. B. Temperatures rise because of the heat coming from lava C. volcanic eruptions don't cause climate changes
A. ash blocks sunlight, causing temperatures to drop.
400
What is magma or igneous rock that is rich in magnesium and iron? A. mafic B. hot spots C. felsic
A. mafic
500
What is the Ring of Fire? A. a chamber in Earth's crust B. volcanoes that for near hot spots C. an area in the Pacific Ocean with many volcanoes
C. an area in the Pacific Ocean with many volcanoes
500
What is pryoclastic material? A. molten rock B. lava that flows underwater C. magma that blast int the air and hardens
C. magma that blasts intyo the air and hardens
500
What is one benefit that volcanoes provide? A. fresh drinking water B. constuction materials C. new medicines
B. construction materials
500
Where do shield volcanoes usually form? A. at hot spots. B. in lava tubes. C. in mantle chambers.
A. at hot spots.
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