Why is the inner core a solid?

it is under tremendous pressure.

Most geologist rejected Alfred Wegner’s idea of continental drift because

He could not identify a force that could move the continents

New crust is being generated in

the rift valleys of the mid-ocean ridges

An example of an object in buoyant (or isostatic) equilibrium

continent "floating" on heavier material below

The force driving the crustal plates is believed to be

convection cells in the upper mantle

The magnetic striping of the seafloor is considered evidence of seafloor spreading

periodic reversals in the polarity of Earth's magnetic field

The youngest seafloor rocks are found

near the rift valleys of the mid-ocean ridges.

How do geologists know about the Earth's interior?

observing the transit times generated by large earthquakes.

Which of the following plate movement statements does not correct

subduction sites where crustal plates are diverging

Mount Everest is getting taller each year. Which of these best explains why?

Its along a boundary between 2 colliding continental plates.

Which is the correct order, starting from the surface, of Earths layers?

crust, mantle, outer core, inner core

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Earth's Structure & Place Tectonics - Ch 3

25 termsStudBud Administration308 plays

This chapter's focus is on the motions of the plates relative to each other is called plate tectonics. Plate tectonics and migration of continents is a central feature in the present theory of the earth's structure.

Flashcards25 cardsFPractice quizPHost liveL

Questions 25

Answers

1
Magnetic stripes were found to be symmetrical along the
Magnetic South Pole
Geographic South Pole
mid-oceanic ridge
San Andreas Fault
2
Why is the inner core a solid?
it is so hot
of a chemical reaction with the outer core
it is not a solid
it is under tremendous pressure.
3
Most geologist rejected Alfred Wegner’s idea of continental drift because
Wegner was interested in Earth - millions of yrs ago
He used several different types of evidence
He could not identify a force that could move the continents
They were afraid of a new idea
4
New crust is being generated in
All of these places are possible
the rift valleys of the mid-ocean ridges
the deep trenches
submarine canyons
5
An early proponent of Continental Drift whose work was not well accepted
John Tuzo Wilson
John Tuzo Wilson
Alfred Wegener
Benjamin Franklin
6
An ocean plate plunges beneath a trench and into the mantle in a process known as
volcanism
subduction
seafloor spreading
paleomagnetism
7
What do these things have in common: Paleomagnetism, seafloor spreading, & Pangaea
discovered in the Challenger expedition
involved with plate tectonics
used to predict earthquake activity
all used to study earthquakes.
8
An example of an object in buoyant (or isostatic) equilibrium
table standing on a concrete floor.
continent "floating" on heavier material below
ice cube sinking in a glass of water.
person standing on a gravel driveway.
9
The force driving the crustal plates is believed to be
deep water currents pulling on the ocean basins
convection cells in the upper mantle
the pull of the sun and the moon
magnetism
10
Which layer of the Earth is made up of tectonic plates?
Asthenosphere
Lithosphere
Mesosphere
Core
11
The magnetic striping of the seafloor is considered evidence of seafloor spreading
changes in Earth's axis of rotation
periodic reversals in the polarity of Earth's magnetic field
spreading centers in the trenches
subduction down the rift valleys
12
If two oceanic plates collide at a relatively fast speed what will probably happen?
A trench will form.
Continental mountains will form.
Earthquakes will not occur.
Volcanoes will form on the mainland.
13
The core of Earth is composed primarily of:
iron
uranium
lead
nickel
14
The youngest seafloor rocks are found
nearest the continental slopes
near the rift valleys of the mid-ocean ridges.
beneath the deep sea trenches.
evenly distributed over the ocean basins
15
What is believed to move the plates across the Earth’s crust?
currents turbidity
conduction
currents rip currents
convection currents
16
Which of the following is not considered a result of the movement of tectonic plates?
Karst topography
Mountain Ranges
Increased volcanic activity
Earthquakes
17
How do geologists know about the Earth's interior?
drilling and digging down into the various layers.
None of these are correct
observing the transit times generated by large earthquakes.
observing the substances from volcanic vents.
18
What is the name of the outermost solid layer of Earth?
outer core
lithosphere
hydrosphere
asthenosphere
19
Land-based evidence for continental drift can be seen
the correlation of rocks in now widely separated continents
evidence of ancient glaciations
the distribution of Glossopteris flora and fauna
All of these are correct.
20
Which of the following plate movement statements does not correct
subduction sites where crustal plates are diverging
subduction zones marked by the presence of deep-sea trenches
subduction zones - old seafloor dives into the crust&mantle
belts of deep-focus earthquakes at transform plate boundary
21
The rigid outermost layer of Earth is called
lithosphere
outer core
asthenosphere
mantle
22
Mount Everest is getting taller each year. Which of these best explains why?
Its along a boundary between 2 colliding continental plates.
The snow pack increases each year on Mount Everest
No erosion takes place at such high altitudes
Continual volcanic activity
23
The San Andreas fault is an example of a(n)
Transform fault
Transform trench
Convergent mountain
Divergent trench
24
Which is the correct order, starting from the surface, of Earths layers?
mantle, crust, inner core, outer core
mantle, crust, outer core, inner core
crust, outer core, inner core, mantle
crust, mantle, outer core, inner core
25
The mid-ocean ridges are recognized as
divergent plate boundaries
transform or lateral plate boundaries.
convergent plate boundaries
subduction zones

Earth's Structure & Place Tectonics - Ch 3 Flashcards | StudBud

Earth's Structure & Place Tectonics - Ch 3

25 termsStudBud Administration308 plays

Flashcards25 cardsFPractice quizPHost liveL

Questions 25

Answers

1
Magnetic stripes were found to be symmetrical along the
Magnetic South Pole
Geographic South Pole
mid-oceanic ridge
San Andreas Fault
2
Why is the inner core a solid?
it is so hot
of a chemical reaction with the outer core
it is not a solid
it is under tremendous pressure.
3
Most geologist rejected Alfred Wegner’s idea of continental drift because
Wegner was interested in Earth - millions of yrs ago
He used several different types of evidence
He could not identify a force that could move the continents
They were afraid of a new idea
4
New crust is being generated in
All of these places are possible
the rift valleys of the mid-ocean ridges
the deep trenches
submarine canyons
5
An early proponent of Continental Drift whose work was not well accepted
John Tuzo Wilson
John Tuzo Wilson
Alfred Wegener
Benjamin Franklin
6
An ocean plate plunges beneath a trench and into the mantle in a process known as
volcanism
subduction
seafloor spreading
paleomagnetism
7
What do these things have in common: Paleomagnetism, seafloor spreading, & Pangaea
discovered in the Challenger expedition
involved with plate tectonics
used to predict earthquake activity
all used to study earthquakes.
8
An example of an object in buoyant (or isostatic) equilibrium
table standing on a concrete floor.
continent "floating" on heavier material below
ice cube sinking in a glass of water.
person standing on a gravel driveway.
9
The force driving the crustal plates is believed to be
deep water currents pulling on the ocean basins
convection cells in the upper mantle
the pull of the sun and the moon
magnetism
10
Which layer of the Earth is made up of tectonic plates?
Asthenosphere
Lithosphere
Mesosphere
Core
11
The magnetic striping of the seafloor is considered evidence of seafloor spreading
changes in Earth's axis of rotation
periodic reversals in the polarity of Earth's magnetic field
spreading centers in the trenches
subduction down the rift valleys
12
If two oceanic plates collide at a relatively fast speed what will probably happen?
A trench will form.
Continental mountains will form.
Earthquakes will not occur.
Volcanoes will form on the mainland.
13
The core of Earth is composed primarily of:
iron
uranium
lead
nickel
14
The youngest seafloor rocks are found
nearest the continental slopes
near the rift valleys of the mid-ocean ridges.
beneath the deep sea trenches.
evenly distributed over the ocean basins
15
What is believed to move the plates across the Earth’s crust?
currents turbidity
conduction
currents rip currents
convection currents
16
Which of the following is not considered a result of the movement of tectonic plates?
Karst topography
Mountain Ranges
Increased volcanic activity
Earthquakes
17
How do geologists know about the Earth's interior?
drilling and digging down into the various layers.
None of these are correct
observing the transit times generated by large earthquakes.
observing the substances from volcanic vents.
18
What is the name of the outermost solid layer of Earth?
outer core
lithosphere
hydrosphere
asthenosphere
19
Land-based evidence for continental drift can be seen
the correlation of rocks in now widely separated continents
evidence of ancient glaciations
the distribution of Glossopteris flora and fauna
All of these are correct.
20
Which of the following plate movement statements does not correct
subduction sites where crustal plates are diverging
subduction zones marked by the presence of deep-sea trenches
subduction zones - old seafloor dives into the crust&mantle
belts of deep-focus earthquakes at transform plate boundary
21
The rigid outermost layer of Earth is called
lithosphere
outer core
asthenosphere
mantle
22
Mount Everest is getting taller each year. Which of these best explains why?
Its along a boundary between 2 colliding continental plates.
The snow pack increases each year on Mount Everest
No erosion takes place at such high altitudes
Continual volcanic activity
23
The San Andreas fault is an example of a(n)
Transform fault
Transform trench
Convergent mountain
Divergent trench
24
Which is the correct order, starting from the surface, of Earths layers?
mantle, crust, inner core, outer core
mantle, crust, outer core, inner core
crust, outer core, inner core, mantle
crust, mantle, outer core, inner core
25
The mid-ocean ridges are recognized as
divergent plate boundaries
transform or lateral plate boundaries.
convergent plate boundaries
subduction zones