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Rock Final #2
Test Description: This is the second set of questions for the final on rocks.
Instructions: Answer all questions to get your test result.
1) The sedimentary rock formed when water deposits tiny particles of clay in very thin, flat layers is called
A
calcite
B
gypsum
C
limestone.
D
shale
2) Chalk formed from sediments made of skeletons of microscopic living things in the ocean must be a(n)
A
clastic rock.
B
igneous rock.
C
organic rock.
D
chemical rock.
3) What forms the structure called a coral reef?
A
particles of clastic rocks
B
cementation of crystals
C
skeletons of coral animals
D
deposits of coral rocks
4) What happens to a coral reef if the sea level rises or if the sea floor sinks?
A
It is not affected.
B
It dies.
C
It continues to grow upward.
D
It grows downward.
5) Over time, coral buried by sediments can turn into
A
coal.
B
atolls.
C
limestone.
D
granite.
6) Because plate movements have raised ancient sea floors above sea level,
A
all remains of ancient coral reefs have been lost.
B
there is less coral than there used to be.
C
limestone that began as coral reefs can be found on the continents.
D
coral reefs are only found in the deep ocean.
7) Heat and pressure deep beneath Earth’s surface can change any rock into
A
chemical rock.
B
gemstones.
C
sedimentary rock.
D
metamorphic rock.
8) The heat that changes a rock into metamorphic rock comes from
A
chemical rocks in the crust.
B
movements in the crust.
C
the sun.
D
the heat of the mantle.
9) Geologists classify metamorphic rock according to
A
the overall shape of the rock.
B
the exterior color of the rock.
C
the arrangement of the grains that make up the rock.
D
the degree of hardness of the rock.
10) The texture of a metamorphic rock that has grains arranged in parallel layers is described as
A
jagged grained.
B
coarse grained.
C
nonfoliated.
D
foliated.
*select an answer for all questions
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