Question 1

Earth's magnetic field is generated from within the entire planet, rather than in a specific region of Earth's interior.

Accepted Answer

A) True 
 B)False

Question 2

The three most abundant elements in Earth's crust are

Accepted Answer

A)   rock, water, and tectonics.
B)   magnesium, potassium, and oxygen.
C)   iron, aluminum, and granite.
D)   oxygen, silicon, and aluminum.E) B) and D)
F) B) and C)

Question 3

The transition zone from the outer core to the mantle is ________ and is known as the ________ discontinuity.

Accepted Answer

A)   uneven; Gutenberg
B)   uneven; Moho
C)   smooth; Gutenberg
D)   smooth; MohoE) B) and D)
F) A) and D)

Question 4

Which of the following is false?

Accepted Answer

A)   The Hawai'ian island chain will subduct in approximately 40 my.
B)   The newest Hawai'ian island, Lo'ihi, should reach the surface in around 10,000 years.
C)   Measured from the sea floor to its summit, Mauna Kea is the tallest mountain on Earth.
D)   The formation of the island of Hawai'i took less than 1 my.E) C) and D)
F) All of the above

Question 5

Which of the following is incorrectly matched?

Accepted Answer

A)   endogenic - internal processes
B)   exogenic - external processes
C)   radioactive decay heat - exogenic energy source
D)   weathering - exogenic breaking and dissolving the crustE) A) and B)
F) C) and D)

Question 6

Tectonic forces

Accepted Answer

A)   erode the surface of Earth.
B)   warp, fold, and uplift rock.
C)   control soil formation processes.
D)   form sedimentary rock.E) C) and D)
F) All of the above

Question 7

The ocean floor is created along midocean ridges.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is true regarding the geologic time scale?

Accepted Answer

A)   The bulk of Earth's history has occurred during the Cenozoic era.
B)   Over 87 percent of Earth's history has elapsed during the more recent Cenozoic, Mesozoic, and Paleozoic eras.
C)   Both relative and absolute dating methods are used in determining the sequence of the time scale.
D)   We live in the Tertiary period.E) B) and C)
F) B) and D)

Question 9

Which of the following is false relative to hot spots?

Accepted Answer

A)   Hot spots can occur beneath both oceanic and continental crust.
B)   They remain relatively fixed in relationship to the migrating plates.
C)   They are responsible for the formation of the Hawaiian-Emperor Islands chain.
D)   Hot spot activity is unrelated to the formation of Iceland, which sits atop a sea-floor spreading ridge in the North Atlantic.E) C) and D)
F) B) and D)

Question 10

The sea-floor spreading center that led to the formation of the Atlantic Ocean accelerated dramatically between

Accepted Answer

A)   4.6 and 2 billion years ago.
B)   465 and 225 million years ago.
C)   the end of the Pleistocene and today.
D)   135 and 65 million years ago.E) B) and D)
F) All of the above

Question 11

The principles of buoyancy and balance, when applied to Earth's crust, helps us to explain fluctuations in Earth's outer crust, a property known as

Accepted Answer

A)   magnetism.
B)   Moho effect.
C)   isostasy.
D)   orogenesis.E) C) and D)
F) A) and D)

Question 12

Which of the following is   endogenic ‾\underline {	ext { endogenic } } endogenic ​  in nature?

Accepted Answer

A)   weathering
B)   stream deposition
C)   volcanism
D)   glacial erosion E) A) and B)
F) None of the above

Question 13

Several large, linear lakes are forming in East Africa. This is evidence of what process?

Accepted Answer

A)   rifting
B)   subduction
C)   compression
D)   isostatic upliftE) A) and B)
F) None of the above

Question 14

Which of the following supports the continental drift concept?

Accepted Answer

A)   magnetic field patterns preserved in the rocks
B)   plant and animal fossil records
C)   radioactive decay dating of rocks on either side of a spreading center
D)   All of these support the theory.
E)   None of these is valid evidence of continental drift.F) B) and C)
G) A) and E)

Question 15

A batholith forms from

Accepted Answer

A)   intrusive igneous rock.
B)   extrusive igneous rock.
C)   metamorphic rock.
D)   sediment accumulation in a depression.E) B) and C)
F) A) and C)

Question 16

At which of the following locations is new ocean crust being formed?

Accepted Answer

A)   rift zones
B)   along collision zones between two continents
C)   along collision zones between two oceanic plates
D)   in trenchesE) None of the above
F) A) and B)

Question 17

Which of the following are located along the midocean ridges?

Accepted Answer

A)   volcanoes
B)   outcrops of granite
C)   old oceanic sediments
D)   evaporite depositsE) C) and D)
F) None of the above

Question 18

Any rock, either igneous or sedimentary, may be transformed into a metamorphic rock, by going through profound physical and/or chemical changes under increased pressure and temperature.

Accepted Answer

A) True 
 B)False

Question 19

An assemblage of minerals bound together is called a

Accepted Answer

A)   granitic compound.
B)   mineral.
C)   molecule.
D)   rock.E) C) and D)
F) B) and D)

Question 20

Which of the following is   not ‾\underline {	ext { not }} not ​  a sedimentary rock?

Accepted Answer

A)   sandstone
B)   bituminous coal
C)   marble
D)   shale E) B) and D)
F) B) and C)

Exam 8: The Dynamic Planet

Which of the following is true regarding the geologic time scale?

Correct AnswerverifiedShow Answer

Earth's magnetic field is generated from within the entire planet, rather than in a specific region of Earth's interior.

Correct AnswerverifiedShow Answer

The three most abundant elements in Earth's crust are

Correct AnswerverifiedShow Answer

An assemblage of minerals bound together is called a

Correct AnswerverifiedShow Answer

Any rock, either igneous or sedimentary, may be transformed into a metamorphic rock, by going through profound physical and/or chemical changes under increased pressure and temperature.

Correct AnswerverifiedShow Answer

The ocean floor is created along midocean ridges.

Correct AnswerverifiedShow Answer

The sea-floor spreading center that led to the formation of the Atlantic Ocean accelerated dramatically between

Correct AnswerverifiedShow Answer

At which of the following locations is new ocean crust being formed?

Correct AnswerverifiedShow Answer

Which of the following is false relative to hot spots?

Correct AnswerverifiedShow Answer

The principles of buoyancy and balance, when applied to Earth's crust, helps us to explain fluctuations in Earth's outer crust, a property known as

Correct AnswerverifiedShow Answer

Which of the following is not ‾\underline {\text { not }} not ​ a sedimentary rock?

Correct AnswerverifiedShow Answer

Which of the following is false?

Correct AnswerverifiedShow Answer

Which of the following is incorrectly matched?

Correct AnswerverifiedShow Answer

Which of the following are located along the midocean ridges?

Correct AnswerverifiedShow Answer

Which of the following supports the continental drift concept?

Correct AnswerverifiedShow Answer

Tectonic forces

Correct AnswerverifiedShow Answer

A batholith forms from

Correct AnswerverifiedShow Answer

The transition zone from the outer core to the mantle is ________ and is known as the ________ discontinuity.

Correct AnswerverifiedShow Answer

Which of the following is endogenic ‾\underline {\text { endogenic } } endogenic ​ in nature?

Correct AnswerverifiedShow Answer

Several large, linear lakes are forming in East Africa. This is evidence of what process?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which of the following is $\underline {\text { not }}$ a sedimentary rock?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The transition zone from the outer core to the mantle is and is known as the discontinuity.

Correct Answer
verified

Which of the following is $\underline {\text { endogenic } }$ in nature?

Correct Answer
verified

Correct Answer
verified