Earth Science: Geology, the Environment, and the Universe

Section 2: The Middle Paleozoic

The Middle Paleozoic

1
What type of water conditions are needed for coral reefs to exist?
A)warm, muddy, shallow water
B)warm, clear, shallow water
C)cold, clear, deep water
D)cold, muddy, deep water
2
What event occurs when sea level falls and the shoreline moves seaward?
A)an orogenic event
B)a regression
C)a transgression
D)an active margin
3
Which of the deposits shown in the figure indicates an area that has always been a marine environment?
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A)A
B)B
C)a transgression
D)all of the above
4
A vertical sequence of limestone-shale-sandstone is evidence of __________.
A)a regression
B)a transgression
C)an orogenic event
D)a passive margin
5
When did plants start to colonize land?
A)Late Ordovician
B)Late Devonian
C)Late Holocene
D)Early Cambrian
6
What was the most important development of plants during the Devonian?
A)photosynthesis
B)seeds
C)food
D)roots
7
Which plant type did NOT occur during the Devonian Period?
A)sphenopsids
B)grasses
C)lycopods
D)ferns
8
What type of economic deposit can be the indirect result of calcium carbonate reefs?
A)oil and gold
B)gypsum and halite
C)pyrite and gypsum
D)halite and fossils
9
What mountain-building event was the result of an ocean-continental collision during the Middle Ordovician?
A)Larimide Orogeny
B)Acadian Orogeny
C)Antler Orogeny
D)Taconic Orogeny
10
In what tectonic event did Avalonia collide with Laurasia?
A)Caledonian Orogeny
B)Larimide Orogeny
C)Acadian Orogeny
D)Taconic Orogeny
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