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Study Quiz 9.3
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1
In your science journal, you write the following description, "an opening in Earth's crust that releases lava, smoke, and ash." What are you describing?
A)A volcanic neck
B)A vent
C)A volcano
D)A crater
2
A hole from which magma emerges is called
A)a vent
B)a volcanic neck
C)a shield
D)a crater
3
Which of the following is NOT a type of volcano?
A)Cinder cone
B)Particutin
C)Shield
D)Composite
4
Which type of volcano is made of alternating layers of lava and cinder or ash?
A)Cinder cone
B)Hot spot
C)Shield
D)Composite
5
Which type of volcano is made of gently sloping layers composed entirely of cooled lava?
A)Cinder cone
B)Stratovolcano
C)Shield
D)Composite
6
What is the Ring of Fire?
A)Another name for the hot spots that created the Hawaiian Islands
B)An underwater subduction zone
C)The area immediately surrounding a volcano
D)The volcanoes encircling the Pacific Ocean
7
The _________ states that, for undistributed layers of rock, the oldest rocks are on the bottom and the youngest rocks are on the top.
A)geothermal principle
B)principle of superposition
C)principle of eras
D)principle of fossils
8
The geologic time scale divides the long history of Earth into smaller units called
A)periods
B)ages
C)eons
D)eras
9
Which of the following is NOT one of the four main divisions of the geologic time scale?
A)Cenozoic
B)Precambrian
C)Prehistoric
D)Paleozoic





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