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Dynamic Crust Review

Total questions: 104

Worksheet time: 2hrs 16mins

Name
Class
Date
1.

When two tectonics plates collide, oceanic crust usually subducts beneath continental crust because oceanic crust is composed of igneous rocks that has

a)

low density and is mafic

b)

low density and is felsic

c)

high density and is mafic

d)

high density and is felsic

2.

Alternating parallel bands of normal and reversed magnetic polarity are found in the basaltic bedrock on either side of the

a)

Mid-Atlantic Ridge

b)

Yellowstone Hot Spot

c)

San Andreas Fault

d)

Peru-Chile Trench

3.

In which cross section below do the arrows best show the convection occurring within the asthenosphere beneath line XY?

a)

1

b)

2

c)

3

d)

4

4.

Samples of ocean floor bedrock were collected at points A, B, C and D. Which sequence shows the correct order of the age of the bedrock from oldest to youngest?

a)

D>C>B>A

b)

A>D>B>C

c)

C>B>D>A

d)

A>B>D>C

5.

The boundary between which two tectonic plates is most similar geologically to the plate boundary at the Mid-Atlantic Ridge?

a)

Eurasian and Indian-Australian

b)

Nazca and South American

c)

Pacific and Nazca

d)

Cocos and Caribbean

6.

Which observation about the Mid-Atlantic Ridge region provides the best evidence that the seafloor has been spreading for millions of years?

a)

the bedrock of the ridge and nearby seafloor is igneous rock

b)

the ridge is the location of irregular volcanic eruptions

c)

several faults cut across the ridge and nearby seafloor

d)

seafloor bedrock is younger near the ridge and older farther away

7.

Active volcanoes are most abundant along the

a)

edges of tectonic plates

b)

equatorial ocean floor

c)

23.5oN and 23.5oS parallels of latitude

d)

eastern coastlines of continents

8.

The diagram to the right shows four major types of fault motion occurring in Earth’s crust. Which type of fault motion best matches the general pattern of crustal movement at California’s San Andreas fault?

a)

1

b)

2

c)

3

d)

4

9.

What are the inferred pressure and temperature at the boundary of Earth's stiffer mantle and outer core?

a)

1.5 million atmospheres pressure and an interior temperature of 4950°C

b)

1.5 million atmospheres pressure and an interior temperature of 6200°C

c)

3.1 million atmospheres pressure and an interior temperature of 4950°C

d)

3.1 million atmospheres pressure and an interior temperature of 6200°C

10.

Which diagram below best represents the pattern of magnetic orientation in the seafloor on the west (left) side of the ocean ridge?

a)
b)
c)
d)
11.

Which inference can best be made from the diagram?

a)

The orientation of the Earth's magnetic field has reversed with time.

b)

The size of the continents has changed with time.

c)

The elevation of sea level has changed with time.

d)

The amount of fossil material preserved in the igneous rock has changed with time.

12.

List the Layers of the Earth in order...

a)

Mantle, Crust, Asthenosphere, Core

b)

Outer Core, Inner Core, Mantle, Crust

c)

Crust, Mantle, Inner Core, Outer Core

d)

Crust, Mantle, Outer Core, Inner Core

13.

Oceanic and Continental Crust are the 2 types of crust found on the planet. Which one is thicker?

a)

Oceanic

b)

Continental

14.

Oceanic and Continental Crust are the 2 types of crust found on the planet. Which one is thinner?

a)

Oceanic

b)

Continental

15.

Oceanic and Continental Crust are the 2 types of crust found on the planet. Which one is made of basalt?

a)

Oceanic

b)

Continental

16.

Oceanic and Continental Crust are the 2 types of crust found on the planet. Which one is made of granite?

a)

Oceanic

b)

Continental

17.

Oceanic and Continental Crust are the 2 types of crust found on the planet. Which one is less dense?

a)

Oceanic

b)

Continental

18.

What are the 2 most common elements found in the Earth's crust?

a)

Aluminum and Magnesium

b)

Oxygen and Hydrogen

c)

Oxygen and Silicon

d)

Silicon and Iron

19.

What layer of the Earth is the thickest?

a)

Mantle

b)

Outer Core

c)

Inner core

d)

Crust

20.

What layer of the Earth is considered "the plastic mantle"?

a)

Crust

b)

Rigid Mantle

c)

Outer Core

d)

Asthenosphere

21.

Convection occurs in the asthenosphere. What causes convections currents to occur in this layer

a)

Density differences. Warm rises because of low density and cool sinks because of high density

b)

Density differences. Warm sinks because of low density and cool rises because of high density

22.

The Outer Core is believed to be liquid

a)

True

b)

False

23.

The Inner Core is believed to be solid

a)

True

b)

False

24.

The Theory of Continental Drift states the continents drifted apart. What is the name of the supercontinent?

a)

Bob

b)

Jose

c)

Crystal

d)

Pangaea

25.

Which of the following are proofs that Pangaea existed?

a)

Fit of the continents

b)

Fossils, Mountains, Rocks Correlate (match up)

c)

Paleoclimate Data

d)

All of the Above

26.

Most earthquakes, volcanoes and mountains are found along plate boundaries

a)

True

b)

False

27.

What type of plate boundary is pictured?

a)

Convergent

b)

Divergent

c)

Transform

28.

What process causes one plate to dive underneath the other plate

a)

Conduction

b)

Subduction

c)

Convection

d)

Radiation

29.

What geologic features are found along a convergent plate boundary?

a)

Strong, deep earthquakes

b)

Volcanoes

c)

Trenches

d)

All of the above

30.

Ocean to Ocean, Continent to Continent and Ocean to Continent are all what type of plate boundary?

a)

Convergent

b)

Divergent

c)

Transform

31.

India crashing up into Asia is an example of what type of convergent plate boundary?

a)

Ocean to Ocean

b)

Continent to Continent

c)

Ocean to Continent

32.

The Peru Chili Trench is an example of what type of convergent plate boundary?

a)

Ocean to Ocean

b)

Continent to Continent

c)

Ocean to Continent

33.

The island arc system of the Aleutian Islands is an example of what type of convergent plate boundary?

a)

Ocean to Continent

b)

Ocean to Ocean

c)

Continent to Continent

34.

What type of plate boundary is pictured?

a)

Convergent

b)

Divergent

c)

Transform

35.

What type of geologic features are found at a divergent plate boundary?

a)

Weak Earthquakes

b)

Volcanoes

c)

All of the above

36.

At a convergent plate boundary, what is happening to the Earths crust?

a)

Crust is being destroyed

b)

Crust is being created

37.

What is happening to crust at a divergent plate boundary?

a)

Crust is being created

b)

Crust is being destroyed

38.

What type of plate boundary is a rift or a ridge?

a)

Convergent

b)

DIvergent

c)

Transform

39.

The Mid Atlantic Ridge is what type of plate boundary?

a)

Convergent

b)

Divergent

c)

Transform

40.

The East African Rift is what type of plate boundary?

a)

Convergent

b)

Divergent

c)

Transform

41.

The reversal of magnetic polarity proves what type of plate boundary?

a)

Convergent

b)

Divergent

c)

Transform

42.

What type of plate boundary is pictured?

a)

Convergent

b)

Divergent

c)

Transform

43.

The San Andreas Fault is what type of plate boundary?

a)

Convergent

b)

Divergent

c)

Transform

44.

Only strong, shallow earthquakes are found along what type of plate boundary?

a)

Convergent

b)

Divergent

c)

Transform

45.

Hawaii is best known as a....

a)

Convergent Boundary

b)

Divergent Boundary

c)

Hot Spot

d)

Transform Boundary

46.

Sometimes marine fossils can be found at the top of mountains. They got there due to a process of...

a)

Uplift

b)

Subduction

c)

Subsidence

d)

Divergence

47.

New York Does NOT get a lot of Earthquakes because....

a)

We are on the Ring of Fire

b)

we are close to a convergent boundary

c)

We are not close to a boundary because we are near the middle of the plate

d)

we are close to a transform boundary

48.

The process of subduction is found at what type of plate boundary?

a)

Convergent

b)

Divergent

c)

Transform

49.

Base your answer on the accompanying diagram, which shows a portion of Earth's interior. Point A is a location on the interface between layers. The arrows shown in the asthenosphere represent the inferred slow circulation of the plastic mantle by a process called

a)

insolation

b)

conduction

c)

convection

d)

Radiation

50.

Convection currents in the plastic mantle are believed to cause divergence of lithospheric plates at the

a)

  1. Peru-Chile Trench

b)

  1. Mariana Trench

c)

  1. Canary Islands Hot Spot

d)

  1. Iceland Hot Spot

51.

Oceanic crust is sliding beneath the Aleutian Islands in the North Pacific Ocean, forming the Aleutian Trench at a

a)

  1. convergent plate boundary between the Pacific Plate and the North American Plate

b)

  1. convergent plate boundary between the Pacific Plate and the Juan de Fuca Plate

c)

  1. divergent plate boundary between the Pacific Plate and the North American Plate

d)

  1. divergent plate boundary between the Pacific Plate and the Juan de Fuca Plate

52.

Trenches can be produced at contact zones between tectonic plates. The boundary between the following plates is an example of that:

a)

  1. South American and African

b)

  1. Indian-Australian and Pacific

c)

  1. Eurasian and North American

d)

Pacific and Antarctic

53.

Convection currents in the plastic mantle are believed to cause divergence of lithospheric plates at the

a)

  1. Peru-Chile Trench

b)

  1. Mariana Trench

c)

  1. Canary Islands Hot Spot

d)

  1. Iceland Hot Spot

54.

Letter X on the map above marks which of the following lithospheric plates?


a)

  1. Pacific Plate

b)

  1. South American Plate

c)

  1. North American Plate

d)

  1. Nazca plate

55.

What is the main driving force behind the movement of tectonic plates?

a)

Magnetic forces from the Earth's core

b)

Convection currents in the mantle

c)

Friction between the tectonic plates

d)

Impact of meteorites on the Earth's surface

56.

Which earth layer is #3? ONLY liquid layer

a)

Crust

b)

Mantle

c)

Outer core

d)

Inner core

57.
Where would the oldest rock be found?
a)
L
b)
M
c)
N
d)
O
58.

As depth increases, the density of Earth's layers

a)

increases

b)

decreases

c)

remains constant

59.

As depth increases, the temperature of Earth's layers

a)

increases

b)

decreases

c)

remains constant

60.

As depth increases, the pressure within Earth

a)

increases

b)

decreases

c)

remains constant

61.

At a depth of 6000 km, you are in the

a)

lithosphere

b)

stiffer mantle

c)

outer core

d)

inner core

62.

If the interior temperature is approximately 5000 degrees C, you are at the boundary between

a)

lithosphere and asthenosphere

b)

asthenosphere and stiffer mantle

c)

stiffer mantle and outer core

d)

outer core and inner core

63.

Density = 5.5

a)

stiffer mantle

b)

outer core

c)

inner core

64.

What is the interior temperature at a depth of 4500 km?

a)

1000 degrees C

b)

4000 degrees C

c)

6000 degrees C

d)

7000 degrees C

65.

What is the density of the continental crust?

a)

3.0g/cm3

b)

2.7g/cm3

c)

5.5g/cm3

d)

3.4g/cm3

66.

What is the density of the continental crust?

a)

3.0g/cm3

b)

2.7g/cm3

c)

5.5g/cm3

d)

3.4g/cm3

67.

What is the depth of the boundary of the beginning of the inner core?

a)

5000 km

b)

3.1 km

c)

6200 km

d)

5100 km

68.

At a depth of 2500 km, what is Earth's interior temperature?

a)

700 0C

b)

4200 0C

c)

5600 0C

d)

4700 0C

69.

At which depth below Earth's surface is the density most likely 9.5 g/cm3?

a)

1,500 km

b)

2,000 km

c)

3,500 km

d)

6,000 km

70.

In which layer of Earth's interior is the inferred temperature 6,000°C?

a)

crust

b)

mantle

c)

outer core

d)

inner core

71.

In which layer of the Earth is the pressure inferred to be 3.5 million atmospheres?

a)

crust

b)

mantle

c)

outer core

d)

inner core

72.

What is a possible temperature of the Stiffer Mantle?

a)

1,000 C

b)

2,000 C

c)

4,000 C

d)

6,000 C

73.

At a depth of 4,000 km, what is a possible pressure?

a)

1

b)

2.2

c)

4.2

d)

10

74.

A temperature of 5,500 C is found in which layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner COre

75.

In which layer would you find a density of 10.1 g/cm3?

a)

Lithosphere

b)

Asthenosphere

c)

Stiffer Mantle

d)

Outer Core

76.

What is the temperature at a depth of 5000 km?

a)

5000 degrees C

b)

5200 degrees C

c)

6200 degrees F

d)

6200 degrees C

77.

On what tectonic plate is the Hawaii hotspot located?

a)

Pacific Plate

b)

African Plate

c)

Indian-Australian Plate

d)

North American Plate

78.

On what tectonic plate is the Tasman hotspot located?

a)

Pacific Plate

b)

African Plate

c)

Indian-Australian Plate

d)

North American Plate

79.

On what tectonic plate is the Yellowstone hotspot located?

a)

Pacific Plate

b)

African Plate

c)

Indian-Australian Plate

d)

North American Plate

80.

Which of the following plates does not border the Nazca Plate?

a)

Cocos

b)

Pacific

c)

Antarctic

d)

Caribbean

81.

What type of plate motion is associated with the San Andreas Fault?

a)

moving together

b)

moving apart

c)

moving side-by-side

d)

not moving

82.

On what tectonic plate is the St. Helena hotspot located?

a)

Pacific Plate

b)

African Plate

c)

Indian-Australian Plate

d)

North American Plate

83.

What type of plate boundary is the Iceland hotspot located on?

a)

divergent

b)

convergent

c)

transform

d)

Eurasian

84.

What type of plate boundary is the Aleutian Trench located on?

a)

divergent

b)

convergent

c)

transform

d)

Eurasian

85.

Compared to the oceanic crust, the continental crust is (hint use esrt p 10)

a)

thicker and more dense

b)

thinner and more dense

c)

thicker and less dense

d)

thinner and less dense

86.

What type of boundary is shown in the diagram?

a)

Divergent

b)

Convergent

c)

Transform

87.

Compared to the oceanic crust the continental crust is  (hint use esrt page 10)

a)

made of granite and more dense

b)

made of granite and less dense

c)

made of basalt and more dense

d)

made of basalt and less dense

88.
This is the driving force behind the movement of tectonic plates.
a)
Mantle convection currents
b)
Oceanic convection currents
c)
Atmospheric convection currents
d)
Solar convection currents
89.

Where are the youngest rocks on Earth found?

a)

Along mid-ocean ridges

b)

Along transform boundaries

c)

On the edges of the continents

d)

Near ocean trenches

90.

Compared to the oceanic crust, the continental crust is (hint use esrt p 10)

a)

thicker and more dense

b)

thinner and more dense

c)

thicker and less dense

d)

thinner and less dense

91.

How is the density of the Earth organized?

a)

highest at the crust, lowest at the inner core

b)

lowest at the crust, highest at the inner core

c)

randomly

d)

highest at the mantle, lowest at the inner core

92.

Use the lower chart on ESRT page 10.


What is the temperature at 3000 km depth?

a)

3000 ºC

b)

4000 ºC

c)

5000 ºC

d)

6000 ºC

93.

Which of the following is the a picture of a ocean to ocean convergent boundary?

a)
b)
c)
d)

None of those show a ocean to ocean convergent

94.

What is the phase of Earth's interior at a depth of 4000 km?

a)

Solid

b)

Liquid

c)

Gas

95.

At a depth of 2500 km, what is Earth's interior temperature?

a)

700 0C

b)

4200 0C

c)

5600 0C

d)

4700 0C

96.
Which pie graph correctly shows the percentage of elements by volume in Earth's troposphere?
a)
1
b)
2
c)
3
d)
4
97.

This TABLE in the picture on page 1 of the ESRT shows

a)

Properties of Water.

b)

Radioactive Decay Data.

c)

Average Chemical Composition of Earth's Curst, Hydrosphere and Troposphere.

d)

Specific Heats of Common Materials.

98.

Which group of elements is listed in increasing order based on the percent by mass in Earth's crust?

a)

(A) aluminum, silicon, magnesium

b)

(B) magnesium, iron, aluminum

c)

(C) magnesium, silicon, calcium

d)

(D) aluminum, iron, calcium

99.

The pie graph below shows the elements comprising Earth's crust in percent by mass. Which element is represented by the letter X?

a)

lead

b)

nitrogen

c)

silicon

d)

hydrogen

100.

The graph below shows the percent by mass of the elements of Earth's crust. Each letter on the graph represents an element. Which elements are represented by the letters a and b, respectively?

a)

aluminum and iron

b)

potassium and sodium

c)

oxygen and silicon

d)

calcium and nitrogen

101.

Most divergent boundaries are...

a)

...trenches.

b)

...ridges.

c)

...hotspots.

d)

...on continents.

102.

Most convergent boundaries are...

a)

...trenches.

b)

...ridges.

c)

...hotspots.

d)

...found in the middle of oceans.

103.

The Marianna Trench is located between the Phillipine Plate and the...

a)

Juan de Fuca Plate.

b)

Scotia Plate

c)

Arabian Plate

d)

Pacific Plate

104.

The Easter Island Hotspot is located on a...

a)

...convergent boundary.

b)

...divergent boundary.

c)

...transform boundary.

d)

...complex or uncertain boundary.

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