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Review II
Test Description: Oceanography, rocks and miscellaneous topics
Instructions: Answer all questions to get your test result.
1) Living corals are found in warm shallow seas. Coral fossils have been found in the sedimentary rocks of Alaska. These findings suggest that
A
coral usually develops in cold climates
B
Alaska's cold climate fossilized the coral
C
ocean currents carried the coral to Alaska
D
Alaska once had a tropical marine environment
2) Which feature in a rock layer is older than the rock layer?
A
igneous intrusions
B
faults
C
mineral veins
D
rock fragments
3) Which two forms of life existed together on the Earth during the same time period? Refer to the Earth Science Reference Tables.
A
trilobites and birds
B
dinosaurs and trilobites
C
trilobites and mastodons
D
mastodons and flowering plants
4) An unconformity between two sedimentary layers is most likely produced by
A
uplift followed by extensive erosion, submergence, and deposition
B
the deposition of gravel followed by the deposition of sand and silt
C
a period of extrusive vulcanism followed by another period of extrusive vulcanism
D
continuous sedimentation in a deep basin over a long period
5) The primary cause of convection currents in the Earth's mantle is believed to be the
A
occurence of earthquakes
B
subsidence of the crust
C
differences in densities of earth materials
D
rotation of the Earth
6) Which is suggested by the occurrence of higher than average temperature below the surface of the Earth in the area of the Mid-Atlantic Ridge?
A
the existence of a thinner crust under mountains
B
a high concentration of magnetism in the mantle
C
the existence of convection cells in the mantle
D
the presence of heat due to orographic effect
7) The grouping of rocks as igneous, sedimentary, and metamorphic is based primarily upon differences i
A
size
B
age
C
hardness
D
origin
8) According to the Earth Science Reference Tables , which sedimentary rock is composed of fragmented skeletons and shells of sea organisms compacted and cemented together?
A
sandstone
B
limestone
C
granite
D
marble
9) Extremely small crystal grains in an igneous rock are an indication that the crystals formed
A
over a short period of time
B
deep below the surface of the Earth
C
under high pressure
D
from an iron-rich magma
10) An area of gentle slopes and rounded mountaintops is most likely due to
A
the age of the bedrock
B
earthquakes
C
the amount of folding
D
climatic conditions
11) Approximately how long does an earthquake P-wave take to travel the first 6500 kilometers after the earthquake occurs?
A
6.5 min
B
12.5 min
C
8.2 min
D
10.0 min
12) What is the deepest part of the ocean that is formed when an oceanic plate subducts under a continental plate?
A
an oceanic trench
B
a transform plate boundary
C
a mountain range
D
a seafloor spreading center
13) Which member of the solar system most strongly affects Earth's ocean tides?
A
the moon
B
Venus
C
the Earth
D
the Sun
14) A material's resistance to flow is called
A
friction
B
viscosity
C
density
D
the Coriolis Effect
15) If the spectral lines produced by the light from a distant galaxy are
A
shifted toward the blue, the galaxy is moving away from us
B
are shifted toward the red, the galaxy is moving toward us
C
shifted toward the blue, the galaxy is stationary
D
are shifted toward the red, the galaxy is moving away from us
*select an answer for all questions
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