A review for our science final at SRB
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What would you expect after an explosive eruption? | darkened skys
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| What does acinder cone volcano have? | steep slopes
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| What is a extinct volccano? | a volcano that will probably never erupt agian
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| How are volcanoes created? | repeated eruptions of lava
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| Where are volcanoes most likely to form? | along plate boundarys
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| What would you expect after a noneplosive eruption? | huge lava flows
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| Where does molten rock often gather? | magma chamber
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| If the water content is high what is likley to happen? | an explosive eruption
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| What type of lava flows most like dripping wax? | pahoehoe
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| What type of lava is forms in jumbled heaps of sharp chunk near the vent? | Blocky lava
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| What type of pyroclastic material means little stones? | Lapilli
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| What is the pryoclastic material that can reach the upper atomsphere that circles the earth for years? | Volcanic ash
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| Describe a possible climate change caused by a volcanic eruption? | Ash blocks the sunlight causing temperature to drop.
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| When rock begins to melt... | temperature and pressure decreases
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| What type of volcane will likely erupt in the near future? | active volcano
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| what does a tiltometer measure? | change in the volcanos slope
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| Where is a volcano likely to form? | along plate boundarys
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| Lava theat has liquid runny consistency probably... | has a low silica content
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| Volcanic activity along the Mid-Atlantic Ridge. This activity occurs at | a divergent boundary
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| Which of the following is NOT considered when predicting volcanic eruptions? | atmospheric activity
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| How are volcanoes created? | by many eruptions of lava
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| What is most likely to happen if the water content is high in magma? | an explosive eruption
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| What is a rift? | a crack in the earths crust
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| Mount Rainier and Mount St Helens are... | composite volcanoes
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| How do scientists classify pyroclastic material? | by size
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| Which type of volcano will never erupt agian? | extinct
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| What does subduction mean | when continental crust slides under oceanic crust
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| what is the term given to the temperature at wich condesation forms? | Dew point
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| What is the term given to stratus clouds that are found at a very low level? | fog
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| Where does a continental polar air mass form? | North Canada
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| Does a anticyclone have high or low pressure? | high
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| Does a cyclone have high or low pressure? | low
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| What are the most powerful storms on earth? | hurricanes
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| Which part of the hurricane has warm calm air and light winds? | THE eye
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| A thunderstorm is most likley created by what type of cloud? | cumulonimbus
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| What instument measures air pressure? | barometer
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| when you see weather systems on the news where do they come from? | weather sattelights
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| On a station modle what does the tail off the circle reprsent? | wind speed and direction
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| What do tetonic plates consist of? | continental and oceanic crust
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| Wegner thought that all thecontinents were once together in one large continent called? | Pangea
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| Evidence for sea-floor spreading has come from? | magnetic minerals on the ocean floor
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| A possible result of plates moving along a trnsform boundary is? | earthquakes
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| What is the outermost layer of the Earth called? | lithospere
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| What type of fault usually occurs because of compression? | reverse
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| In a reverse fault,where does the hanging wall move realitive to the footwall? | upward
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| In a normal fault, where does the hanging wall move relative to the footwall? | downward
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| What kind of force can lead to mountians with sharp,jagged peaks? | tension
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| What type of boundary is formed when plates seperate? | divergent
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| What doees NOT provide evidence for continental drift | oceanic plate theory
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| The consists of mostly of what? | iron
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