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Geology Quiz 1 Questions, Earth Science Midterm #1, Geo 1, Geol1302, Geology Exam 2, Exam 2 PT.2, Geo Quiz 1, Chapter 04 Plate Techtonics, Geo Chapter 3, Chapter 13, Chapter 14, Chapter 04 Plate Techtonics, geol 101: 2.4, geology test 1, oceans test 1 $14.49   Add to cart

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Geology Quiz 1 Questions, Earth Science Midterm #1, Geo 1, Geol1302, Geology Exam 2, Exam 2 PT.2, Geo Quiz 1, Chapter 04 Plate Techtonics, Geo Chapter 3, Chapter 13, Chapter 14, Chapter 04 Plate Techtonics, geol 101: 2.4, geology test 1, oceans test 1

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Geology Quiz 1 Questions, Earth Science Midterm #1, Geo 1, Geol1302, Geology Exam 2, Exam 2 PT.2, Geo Quiz 1, Chapter 04 Plate Techtonics, Geo Chapter 3, Chapter 13, Chapter 14, Chapter 04 Plate Techtonics, geol 101: 2.4, geology test 1, oceans test 1 Geology Quiz 1 Questions, Earth Science Midter...

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  • September 14, 2024
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lectjoseph
Geology Quiz 1 Questions, Earth Science Midterm #1,
Geo 1, Geol1302, Geology Exam 2, Exam 2 PT.2, Geo
Quiz 1, Chapter 04 Plate Techtonics, Geo Chapter 3,
Chapter 13, Chapter 14, Chapter 04 Plate Techtonics,
geol 101: 2.4, geology test 1, oceans test 1
The stream of charged particles given off by the Sun, which prevented the accumulation of hydrogen
and helium during the formation of the terrestrial planets, is called - ANS Solar wind



With increasing altitude, the concentration of gases in our atmosphere - ANS Becomes less dense



By Mass, the four most abundant elements in the Earth are oxygen, silicon, magnesium, and - ANS
Iron



Of the three primary compositional layers of the Earth (Crust, mantle, core), which is the densest
layer - ANS Core



The boundary between the crust and the mantle is marked by a seismic-velocity discontinuity called
- ANS The Moho



Strong evidence that the Universe is expanding comes from the fact that the light emitted from
distant galaxies appears to be - ANS Red-shifted



The shape of the Earth's magnetic field is approximately that of a - ANS Dipole



Among the choices below, the best estimate of the age of the Universe is - ANS 14 billion years old



Unlike the lithosphere, the asthenosphere - ANS Is relatively weak, and flows readily



Within the sea floor, the rate of heat flow is greatest - ANS Along mid-ocean ridges



At a convergent plate boundary, two opposed plates - ANS Move toward one another

,Regions of the sea floor with present day positive magnetic anomalies were formed during times
when the Earth's magnetic field - ANS Had normal polarity



The age of the oceanic crust ____________ with increasing distance from a mid-ocean ridge - ANS
Increases



Marine magnetic anomaly belts (on oceanic basaltic crust) run parallel to - ANS Mid-ocean ridges



Mid-ocean ridges are - ANS Divergent



Earth's geothermal gradient is the rate of temperature change incurred by ____________. - ANS
traversing down within Earth's interior



Earth's surface is protected from solar wind and cosmic radiation by _________. - ANS Earth's
magnetic field



Whereas the crust-mantle boundary represents a change in rock type, the lithosphere-
asthenosphere boundary is due to a change in the _____________ of the material. - ANS rheology



The lithosphere is composed of the ____________. - ANS crust and the uppermost part of the
mantle



Earth's hydrosphere consists of ____________. - ANS surficial freshwater, the oceans, groundwater,
and atmospheric water



With increasing altitude, the concentration of gases in our atmosphere ____________. - ANS
becomes less dense



The rate at which the temperature of the Earth increases with depth is called the
_________________ gradient. - ANS geothermal



As compared to continental crust, the rocks that make up oceanic crust are ____________. - ANS
denser

,Rounded to the nearest integer, the average density of the Earth's crust is __________ grams per
cubic centimeter. (numeric answer only) - ANS 3



That the Earth is a sphereoid is a relatively new discovery, not widely accepted until the 15th
Century when it was confirmed by Columbus's voyage. - ANS False



What is the term for gasses contained within liquid rock beneath the surface of the Earth? - ANS
volatiles



The Earth's mantle is made up mostly of melted peridotite. - ANS false



Which rock composes the Earth's mantle? - ANS peridotite



The shape of Earth's magnetic field is approximately that of a ________. - ANS dipole (such as that
produced by a bar magnet)



The thickness of Earth's crust varies from ____________. - ANS 7 to 70 km



The Moho ____________. - ANS is found deeper underneath continents than under oceans



To the nearest 1000 kilometers, how thick is the Earth's mantle? - ANS



Until Columbus's voyage in 1492, most scientists thought the Earth was much smaller than it actually
is. - ANS False



Continental crust rises higher because it is less _____________ than oceanic crust. - ANS dense



Pluton - ANS A blob-like igneous rock body that has cooled beneath the surface of the Earth is called:



A sheetlike intrusion that lies parallel to surrounding layers of sedimentary rock. - ANS A sill is:

, magma is found beneath the Earth's surface, whereas lava has reached the surface. - ANS The
difference between lava and magma is that:



A sheetlike intrusion that cuts across preexisting layers - ANS A dike is:



All of the above:

Are formed through the freezing of melt

Can be produced at the surface of the Earth as well as deep below the surface

Are the most common types of rocks within Earth - ANS Igneous rocks



True - ANS Very early in Earth's history, it was so hot that the surface was likely entirely molten



Intrusive Igneous Rocks - ANS When magma crystallizes,__________ are formed.



Have a tendency to evaporate and are stable as gases - ANS Volatiles refer to substances that



Decrease - ANS If the volatile content of magma is increased, its viscosity will:



Increase - ANS If a body of magma becomes more felsic, its viscosity will:



Cool and solidify more quickly - ANS As compared to coarse- grained igneous rocks, all fine grained
igneous rocks:



Cool more slowly - ANS All other factors being equal, intrusive rocks that form deep within
Earth_________ than intrusive rocks that cool near the surface.



All of the above:

is volcanic glass

possesses conchoidal fracture

typically is felsic in composition - ANS Obsidian



are lighter in color than mafic rocks. - ANS Most commonly, felsic igneous rocks:

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