SCIN 138 WEEK 6 EXAM PART 1 GRADED A+ (LATEST
2023/2024)
What was the main view how the world worked geologically prior to the 1960s?
A) It was generally believed that the earth was flat.
B) It was generally believed that mountains were produced by vertical forces.
C) It was generally believed that continents and oceans moved.
D) It was generally believed that oceans formed as a result of meteorite impacts -
ANSWER: B
In Wegener's time, scientists thought that the occurrence of fossils of the same
organism in two different, disconnected continents was proof that ________.
A) there had once been land bridges separating the continents
B) the weather patterns had changed over time such that some organisms could be
blown by the wind from one place to another.
C) there were icebergs in the Atlantic Ocean that could carry organisms from Africa
to South America
D) birds flew between the continents and carried the organisms with them. -
ANSWER: A
Wegener's work is a good demonstration of the scientific method because
________.
A) he was right, but no one believed him
B) his hypothesis passed all of the scientific testing to become a theory
C) his hypothesis did not pass all of the scientific tests to become a theory
D) he was wrong, and as a result, no one believed him - ANSWER: C
Which of the following statements apply to the asthenosphere, but not the
lithosphere?
A) zone in the upper mantle that deforms by plastic flowage
B) cool, rigid layer of crust and upper mantle that forms the tectonic plates
C) deforms mainly by brittle fracturing and faulting
D) partial melting of rising granitic plumes produces huge volumes of basaltic magma
- ANSWER: A
All of the earth's ocean basins are ________.
A) less than 2 million years old
B) less than 20 million years old
C) less than 200 million years old
D) less than 2000 million years old - ANSWER: C
Volcanoes form above subduction zones because ________.
A) the subducting lithosphere melts as it descends and the magma rises to form
volcanoes
B) the lithosphere thickens above the subducting lithosphere and causes volcanoes
to form
, C) the asthenosphere is displaced by the subducting lithosphere and rises to the
surface to form volcanoes
D) water is squeezed out of the subducting slab and the water triggers melting of the
overlying asthenosphere - ANSWER: D
The San Andreas fault zone in California is an example of ________.
A) a transform plate boundary
B) a continental rift
C) a divergent plate boundary
D) an ocean-continent collision - ANSWER: A
Which ocean formed as a direct result of the breakup of Pangaea?
A) Pacific
B) Arctic
C) Mediterranean
D) Atlantic - ANSWER: D
Which of the following is considered the most important driving factor for Plate
Tectonics?
A) layer cake
B) slab pull
C) whole mantle
D) ridge push - ANSWER: B
Alfred Wegener developed the theory of Plate Tectonics. - ANSWER: F
Wegener suggested the thick continents moved through the thinner ocean crust. -
ANSWER: T
Oceanic crust has a mafic composition and therefore is denser than continental
crust. - ANSWER: T
Continental rocks do not rift because they are too thick - ANSWER: F
Earth's radius and surface area are slowly increasing to accommodate the new
oceanic crust being formed at mid-ocean ridges - ANSWER: F
The oldest rocks of the oceanic crust are found in deep ocean trenches far away
from active, mid-ocean ridges - ANSWER: T
Major earthquakes are often followed by somewhat smaller events known as
________.
A) aftershocks
B) foreshocks
C) tremors
D) hyposhocks - ANSWER: A
2023/2024)
What was the main view how the world worked geologically prior to the 1960s?
A) It was generally believed that the earth was flat.
B) It was generally believed that mountains were produced by vertical forces.
C) It was generally believed that continents and oceans moved.
D) It was generally believed that oceans formed as a result of meteorite impacts -
ANSWER: B
In Wegener's time, scientists thought that the occurrence of fossils of the same
organism in two different, disconnected continents was proof that ________.
A) there had once been land bridges separating the continents
B) the weather patterns had changed over time such that some organisms could be
blown by the wind from one place to another.
C) there were icebergs in the Atlantic Ocean that could carry organisms from Africa
to South America
D) birds flew between the continents and carried the organisms with them. -
ANSWER: A
Wegener's work is a good demonstration of the scientific method because
________.
A) he was right, but no one believed him
B) his hypothesis passed all of the scientific testing to become a theory
C) his hypothesis did not pass all of the scientific tests to become a theory
D) he was wrong, and as a result, no one believed him - ANSWER: C
Which of the following statements apply to the asthenosphere, but not the
lithosphere?
A) zone in the upper mantle that deforms by plastic flowage
B) cool, rigid layer of crust and upper mantle that forms the tectonic plates
C) deforms mainly by brittle fracturing and faulting
D) partial melting of rising granitic plumes produces huge volumes of basaltic magma
- ANSWER: A
All of the earth's ocean basins are ________.
A) less than 2 million years old
B) less than 20 million years old
C) less than 200 million years old
D) less than 2000 million years old - ANSWER: C
Volcanoes form above subduction zones because ________.
A) the subducting lithosphere melts as it descends and the magma rises to form
volcanoes
B) the lithosphere thickens above the subducting lithosphere and causes volcanoes
to form
, C) the asthenosphere is displaced by the subducting lithosphere and rises to the
surface to form volcanoes
D) water is squeezed out of the subducting slab and the water triggers melting of the
overlying asthenosphere - ANSWER: D
The San Andreas fault zone in California is an example of ________.
A) a transform plate boundary
B) a continental rift
C) a divergent plate boundary
D) an ocean-continent collision - ANSWER: A
Which ocean formed as a direct result of the breakup of Pangaea?
A) Pacific
B) Arctic
C) Mediterranean
D) Atlantic - ANSWER: D
Which of the following is considered the most important driving factor for Plate
Tectonics?
A) layer cake
B) slab pull
C) whole mantle
D) ridge push - ANSWER: B
Alfred Wegener developed the theory of Plate Tectonics. - ANSWER: F
Wegener suggested the thick continents moved through the thinner ocean crust. -
ANSWER: T
Oceanic crust has a mafic composition and therefore is denser than continental
crust. - ANSWER: T
Continental rocks do not rift because they are too thick - ANSWER: F
Earth's radius and surface area are slowly increasing to accommodate the new
oceanic crust being formed at mid-ocean ridges - ANSWER: F
The oldest rocks of the oceanic crust are found in deep ocean trenches far away
from active, mid-ocean ridges - ANSWER: T
Major earthquakes are often followed by somewhat smaller events known as
________.
A) aftershocks
B) foreshocks
C) tremors
D) hyposhocks - ANSWER: A
