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Which layer within the earth is molten (liquid)?
Flag question: Question 2Question 22 pts
Which is a gaseous planet?
Flag question: Question 3Question 32 pts
The Big Bang theory states that…
Flag question: Question 4Question 42 pts
Which is a rocky planet?
Flag question: Question 5Question 52 pts
Which elements comprise 98% of the Crust?
Flag question: Question 6Question 62 pts
Differentiation is the process that...
Flag question: Question 7Question 72 pts
How do geologists know the composition of the core?
Flag question: Question 8Question 82 pts
Where did the water in Earth's oceans come from?
Flag question: Question 9Question 92 pts
What process slowly began to change the Earth's early atmosphere into an oxygen-rich one?
Flag question: Question 10Question 102 pts
Our solar system formed from
Flag question: Question 11Question 112 pts
With increasing distance from an oceanic ridge,
Flag question: Question 12Question 122 pts
All of the following can be used to identify plate boundaries except?
Flag question: Question 13Question 132 pts
Large mountainous ridges on the ocean floor mark
Flag question: Question 14Question 142 pts
Plate-tectonic activity
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Stripes that record paleomagnetic reversals on the seafloor
Flag question: Question 16Question 162 pts
The supercontinent Pangaea was split apart by
Flag question: Question 17Question 172 pts
The boundary between the lithosphere and asthenosphere is based on which of the following?
Flag question: Question 18Question 182 pts
Which of the following is true of the ocean floor?
Flag question: Question 19Question 192 pts
Why do earthquakes only occur in the lithosphere?
Flag question: Question 20Question 202 pts
According to plate-tectonic theory, plates of rigid, elastic __________ move over a weak layer below.
Flag question: Question 21Question 212 pts
Which of the following is true of oceanic rock?
Flag question: Question 22Question 222 pts
The difference between the lithosphere and the asthenosphere is based on the chemical composition of the rocks in each layer.
Flag question: Question 23Question 232 pts
Typical rates of plate movement are
Flag question: Question 24Question 242 pts
A volcanic island arc forms where
Flag question: Question 25Question 252 pts
A possible “driving force” for plate motions is
Flag question: Question 26Question 262 pts
What type of plate boundary creates high ocean ridges at which new volcanic rock forms?
Flag question: Question 27Question 272 pts
One primary difference between continental drift and plate tectonics is that
Flag question: Question 28Question 282 pts
Deep-focus earthquakes only occur at which type of plate boundary?
Flag question: Question 29Question 292 pts
Which of the following is not a mechanism that contributes to plate tectonic movement?
Flag question: Question 30Question 302 pts
Mantle Convection, the major driving force for plate tectonics, occurs because _____.
Flag question: Question 31Question 312 pts
Which of the following formed at a collisional plate boundary?
Flag question: Question 32Question 322 pts
Paleomagnetic evidence in rocks reveals that the earth's magnetic field
Flag question: Question 33Question 332 pts
An igneous rock that formed as magma cooled below the surface of the Earth is called ________ and will have ________crystals than one that formed as lava cooled above the Earth's surface.
Flag question: Question 34Question 342 pts
For two isotopes of a given element, which of the following is always the same?
Flag question: Question 35Question 352 pts
Volcanic glass is not considered a mineral because…
Flag question: Question 36Question 362 pts
Which of the following is true of a mafic igneous rock?
Flag question: Question 37Question 372 pts
Rocks that formed from the solidification of magma as it cooled below the earth’s surface are called:
Flag question: Question 38Question 382 pts
What are the two most abundant elements in the Earth's Crust?
Flag question: Question 39Question 392 pts
Which of the following is true of continental crust (as compared to oceanic crust)
Flag question: Question 40Question 402 pts
In a metamorphic rock, foliation develops _________ directed stress (or to the maximum stress).
Flag question: Question 41Question 412 pts
In geology, radioactive isotopes are important because...
Flag question: Question 42Question 422 pts
Sedimentary rocks are particularly in helping geologists determine which of the following?
Flag question: Question 43Question 432 pts
When a rock undergoes metamorphism, which of the following may occur?
Flag question: Question 44Question 442 pts
When a preexisting rock is subjected to conditions of increased ______ and _______, a metamorphic rock will form.
Flag question: Question 45Question 452 pts
A particular chemical element is determined by the number of ___________.
Flag question: Question 46Question 462 pts
Limestone, which precipitates from seawater, is an example of what type of rock?
Flag question: Question 47Question 472 pts
Metamorphism occurs as temperature and pressure increase and cause melting of the protolith.
Flag question: Question 48Question 482 pts
_______ sedimentary rocks form when other rocks are broken down, transported, and lithified.
Flag question: Question 49Question 492 pts
The atomic number of an element is…
Flag question: Question 50Question 502 pts
Which of the following is true of Porphyritic igneous rocks?