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Questions and Answers
What is the difference between weathering and erosion?
What is the difference between weathering and erosion?
- weathering is the creation of loose particles and erosion is the removal of these pieces from the landscape (correct)
- weathering is the removal of material from the landscape, whereas erosion is the creation of loose particles
- erosion is the breakdown of existing rocks and weathering is the creation of new rocks
- erosion and weathering are the same thing
Which of the following types of weathering can occur without water?
Which of the following types of weathering can occur without water?
- hydrolysis
- frost wedging
- dissolution reactions
- exfoliation (correct)
Which of the following best describes the hydrolysis reaction?
Which of the following best describes the hydrolysis reaction?
- minerals reacting with slightly acidic water to form new minerals and dissolved ions (correct)
- the conversion of Fe+2 to Fe+3
- the dissolving of the minerals
- the breaking of larger pieces of rock into smaller pieces of rock
Which of the following are arranged from finest to coarsest-grained clastic sedimentary rock?
Which of the following are arranged from finest to coarsest-grained clastic sedimentary rock?
In which of the following sedimentary environments would you expect the sand deposits to be poorly sorted?
In which of the following sedimentary environments would you expect the sand deposits to be poorly sorted?
In which of the following climates will chemical weathering be most rapid?
In which of the following climates will chemical weathering be most rapid?
Which of the following may reveal the direction of a stream current?
Which of the following may reveal the direction of a stream current?
The two important criteria used for igneous rock classification are _____
The two important criteria used for igneous rock classification are _____
An igneous rock with minerals that can be seen with the unaided eye exhibits:
An igneous rock with minerals that can be seen with the unaided eye exhibits:
If a body of magma is subjected to fractional crystallization, the remaining magma that results is expected to be:
If a body of magma is subjected to fractional crystallization, the remaining magma that results is expected to be:
Hawaiian volcanic eruptions are not too dangerous because:
Hawaiian volcanic eruptions are not too dangerous because:
Which of the following best describes a granite?
Which of the following best describes a granite?
Important volatiles in magmas include ____
Important volatiles in magmas include ____
Which of the following properties increases in the direction of the arrows in the sentence above?
Which of the following properties increases in the direction of the arrows in the sentence above?
An igneous rock can become a metamorphic rock through the processes of:
An igneous rock can become a metamorphic rock through the processes of:
A _____ is the original, unmetamorphosed rock which is a given metamorphic rock is formed
A _____ is the original, unmetamorphosed rock which is a given metamorphic rock is formed
The main processes that control the formation of metamorphic rocks are?
The main processes that control the formation of metamorphic rocks are?
The primary difference between phyllite and schist is____
The primary difference between phyllite and schist is____
The primary difference between lithostatic pressure and directed stress is:
The primary difference between lithostatic pressure and directed stress is:
Which series shows the progression of a metamorphic rock from original deposition of a mudstone protolith to the highest grade of metamorphism?
Which series shows the progression of a metamorphic rock from original deposition of a mudstone protolith to the highest grade of metamorphism?
An index mineral is defined as _____
An index mineral is defined as _____
A metamorphic facies is best defined as a group of rocks that:
A metamorphic facies is best defined as a group of rocks that:
The blueschist facies form under which of the following conditions?
The blueschist facies form under which of the following conditions?
The breakdown of exposed rocks into small fragments is termed _______
The breakdown of exposed rocks into small fragments is termed _______
A felsic intrusive rock common in the continental crust is ____, and its extrusive equivalent is _____. Oceanic crust is primarily composed of ________, which crystallizes at depth in the earth, and is compositionally equivalent to _____ at the surface
A felsic intrusive rock common in the continental crust is ____, and its extrusive equivalent is _____. Oceanic crust is primarily composed of ________, which crystallizes at depth in the earth, and is compositionally equivalent to _____ at the surface
________ is the primary control on the texture (grain size) of igneous rocks
________ is the primary control on the texture (grain size) of igneous rocks
During the crystallization process, the first minerals to crystallize are the most: mafic or felsic?
During the crystallization process, the first minerals to crystallize are the most: mafic or felsic?
Name three of the four principal factors controlling metamorphism ______, _____, and _______
Name three of the four principal factors controlling metamorphism ______, _____, and _______
___________ is a pervasive planar fabric within a rock that is formed by directed stress during deformation and metamorphism
___________ is a pervasive planar fabric within a rock that is formed by directed stress during deformation and metamorphism
List 4 types of metamorphism:
List 4 types of metamorphism:
__________ is the protolith for quartzite
__________ is the protolith for quartzite
________ is a non-foliated metamorphic rock whose protolith is comprised of altered limestone
________ is a non-foliated metamorphic rock whose protolith is comprised of altered limestone
the primary basis on which a hypothesis may be elevated to the status of a theory is:
the primary basis on which a hypothesis may be elevated to the status of a theory is:
The principle of ______ states the present is the key to the past
The principle of ______ states the present is the key to the past
An unconformity is an _______
An unconformity is an _______
The geologic time scale is broken up into several sub-divisions from Eons Eras Period Epochs based on empirically derived observations of cross-cutting relationships, faunal successions and new advances in radiometric dating. To which eon do the oldest dated minerals on the Earth belong?
The geologic time scale is broken up into several sub-divisions from Eons Eras Period Epochs based on empirically derived observations of cross-cutting relationships, faunal successions and new advances in radiometric dating. To which eon do the oldest dated minerals on the Earth belong?
Two atoms of a single element that differ in the number of neutrons are said to represent two distinct ____ of that element
Two atoms of a single element that differ in the number of neutrons are said to represent two distinct ____ of that element
The figure at right shows the decay curve of a parent radioactive isotope. What is the half-life of this isotope?
The figure at right shows the decay curve of a parent radioactive isotope. What is the half-life of this isotope?
According to the Big Bang Theory, our universe is ______
According to the Big Bang Theory, our universe is ______
If a star is being observed from Earth and its light has shifted towards the blue end of the electromagnetic spectrum, it would be:
If a star is being observed from Earth and its light has shifted towards the blue end of the electromagnetic spectrum, it would be:
The production of new elements in stars via nuclear reaction is called _____
The production of new elements in stars via nuclear reaction is called _____
Aside from Earth, the terrestrial planets are _________
Aside from Earth, the terrestrial planets are _________
The formation of the moon is thought to have occurred by:
The formation of the moon is thought to have occurred by:
From left to right, correctly label each section of this slice of the Earth. Note that 1 starts at the surface of the Earth and 6 ends at the center of the Earth
From left to right, correctly label each section of this slice of the Earth. Note that 1 starts at the surface of the Earth and 6 ends at the center of the Earth
The shape of the Earth's magnetic field is approximately that of a ________
The shape of the Earth's magnetic field is approximately that of a ________
The layers that make up the Earth's tectonic plates:
The layers that make up the Earth's tectonic plates:
As compared to the asthenosphere, the lithosphere is ________
As compared to the asthenosphere, the lithosphere is ________
Compared to oceanic crust, continental crust is _____________
Compared to oceanic crust, continental crust is _____________
the boundary between the crust and mantle is marked by a seismic discontinuity called _______
the boundary between the crust and mantle is marked by a seismic discontinuity called _______
the two most abundant elements in Earth's crust and mantle are:
the two most abundant elements in Earth's crust and mantle are:
the strength of chemical bonds affects the hardness of minerals: the stronger the bonding, the harder the material. which of the following bond types produces the hardest minerals?
the strength of chemical bonds affects the hardness of minerals: the stronger the bonding, the harder the material. which of the following bond types produces the hardest minerals?
which source of energy is MOST likely responsible for plate tectonic movements?
which source of energy is MOST likely responsible for plate tectonic movements?
how do magnetic anomalies on the ocean floor serve as evidence for seafloor spreading?
how do magnetic anomalies on the ocean floor serve as evidence for seafloor spreading?
Regions of the seafloor with negative magnetic anomalies were formed during times when the Earth's magnetic field ______
Regions of the seafloor with negative magnetic anomalies were formed during times when the Earth's magnetic field ______
Which of the following best describes the global distribution of earthquakes?
Which of the following best describes the global distribution of earthquakes?
Deep-ocean trenches are found predominantly along the perimeter of the ____
Deep-ocean trenches are found predominantly along the perimeter of the ____
in a hotspot volcanic island chain, which of the following is true?
in a hotspot volcanic island chain, which of the following is true?
Transform boundaries are identified by which of the following?
Transform boundaries are identified by which of the following?
the age of the universe is approximately ________ years old, whereas the age of the Earth is _____ years old
the age of the universe is approximately ________ years old, whereas the age of the Earth is _____ years old
the Earth contains a number of interacting systems, of which the three main systems of are the _____ system, the _________ system, and the _______ system
the Earth contains a number of interacting systems, of which the three main systems of are the _____ system, the _________ system, and the _______ system
the elements that make up a star's composition throughout the majority of its life are _____ and ______. however, massive stars continue to fuse elements in their coarse all the way up to _____ just prior to their death when their increasing mass cause the star to collapse
the elements that make up a star's composition throughout the majority of its life are _____ and ______. however, massive stars continue to fuse elements in their coarse all the way up to _____ just prior to their death when their increasing mass cause the star to collapse
the _____________ hypothesis is thought to accurately describe the formation of our solar system
the _____________ hypothesis is thought to accurately describe the formation of our solar system
the _________ and ___________ are layers of the earth that are dominated by convection, whereas the __________ and the __________ are dominated by conduction
the _________ and ___________ are layers of the earth that are dominated by convection, whereas the __________ and the __________ are dominated by conduction
the innermost layer of the Earth consists of what metallic alloy?
the innermost layer of the Earth consists of what metallic alloy?
plate tectonics describe the motion of a mechanically strong layer known as the ______ that moves on top of the weak, connecting portion of the upper ______, known as the _______
plate tectonics describe the motion of a mechanically strong layer known as the ______ that moves on top of the weak, connecting portion of the upper ______, known as the _______
the ________ is the name for the most abundant group of minerals, often called the "rock forming minerals"
the ________ is the name for the most abundant group of minerals, often called the "rock forming minerals"
at what type of plate boundary do subduction zones occur ?
at what type of plate boundary do subduction zones occur ?
give an example of a mountain range that formed by a continent-continent collision
give an example of a mountain range that formed by a continent-continent collision
the most recent supercontinent, which began to break up about 250 million years ago, is called ________
the most recent supercontinent, which began to break up about 250 million years ago, is called ________
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