Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Where does magma come from?
a. | the Earth’s mantle | c. | the lithosphere | b. | the Earth’s
inner core |
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2.
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Whatg is magma called when it’s on the Earth’s surface?
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3.
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What happens in a subduction zone?
a. | one tectonic plate is pushed under another, into the mantle | c. | several tectonic
plates are ripped apart | b. | two tectonic plates move away from each
other |
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4.
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what is volcanic ash made of?
a. | lava fragments | c. | smoke and steam | b. | tiny bits of
rock |
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5.
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What kind of lava erupts from a shield volcano?
a. | chunky lava | c. | ash lava | b. | runny lava |
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6.
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What happens at mid-ocean ridges?
a. | two plates converge, creating new crust | c. | Atoll island chains are constantly
forming | b. | volcanoes erupt, adding to the ocean floor |
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7.
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What releases steam and hot gas from the ground?
a. | a fumarole | c. | a hurricane | b. | a tsunami |
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8.
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How are calderas formed?
a. | by slow moving lava | c. | by asteroids | b. | by explosive volcanic
eruptions |
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9.
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What might result from ash clouds lingering in the atmosphere?
a. | holes in the ozone layer | c. | climate change | b. | a permanent terrible
smell |
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10.
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What is the Ring of Fire?
a. | a series of hotspots in the Atlantic Ocean | c. | another name for all the volcanoes
in the United States. | b. | a chain of volcanoes around the Pacific
Ocean |
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