Question 1

Toward the end of the Mesozoic era, the ________ orogeny formed the southern ranges of the Rocky Mountains.

Accepted Answer

The answer of Toward the end of the Mesozoic era,...

Question 2

The ________ means "the Sun in the making."

Accepted Answer

A)   solar disk
B)   presun
C)   nebular Sun
D)   sol
E)   protosunF) C) and E)
G) A) and E)

Question 3

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Accepted Answer

A)   trilobites 
B)   brachiopods 
C)   fish 
D)   dinosaursE) A) and B)
F) A) and C)

Question 4

The beginning of the ________ era is marked by the appearance of the first life forms with hard parts.

Accepted Answer

A)   Precambrian
B)   Paleozoic
C)   Mesozoic
D)   CenozoicE) A) and B)
F) All of the above

Question 5

One hypothesis for the extinction that took place at the end of the Mesozoic is that a large ________ collided with Earth.

Accepted Answer

The answer of One hypothesis for the extinction that took...

Question 6

Bacteria that thrive in oxygen free environments are called ________ bacteria.

Accepted Answer

The answer of Bacteria that thrive in oxygen free environments...

Question 7

The most common Precambrian rock type is ________ rock.

Accepted Answer

The answer of The most common Precambrian rock type is...

Question 8

The major source of oxygen in Earth's atmosphere is from the decay of plants.

Accepted Answer

A) True 
 B)False  False

Question 9

Due to a virtual absence of land plants and certain animals, fossil fuels are notably absent in ________ rocks.

Accepted Answer

A)   Precambrian
B)   Paleozoic
C)   Mesozoic
D)   Cenozoic
E)   Paleozoic and MesozoicF) B) and E)
G) C) and E)

Question 10

Abundant fossil evidence did not appear in the geologic record until about ________.

Accepted Answer

A)   5 billion years ago
B)   6 million years ago
C)   540 million years ago
D)   300 million years ago
E)   3 billion years agoF) A) and B)
G) A) and C)

Question 11

The age of Earth is about ________.

Accepted Answer

A)   2 billion years
B)   4.6 million years
C)   16 million years
D)   4.5 billion years
E)   195 million yearsF) C) and D)
G) C) and E) D

Question 12

During the ________ period, large evaporite deposits of rock salt and gypsum formed in North America.

Accepted Answer

A)   Cambrian
B)   Silurian
C)   Pennsylvanian
D)   Jurassic
E)   TertiaryF) A) and C)
G) A) and B)

Question 13

Each continent contains large "core areas" of Precambrian rocks referred to as ________.

Accepted Answer

A)   rifts
B)   plates
C)   plateaus
D)   shields
E)   none of theseF) C) and D)
G) None of the above

Question 14

Western North America is the leading edge of the ________ plate.

Accepted Answer

The answer of Western North America is the leading edge...

Question 15

Earth's primitive atmosphere evolved from gases ________.

Accepted Answer

A)   produced by radioactive decay
B)   collected from the nebula
C)   escaping from water
D)   from the Sun
E)   expelled from withinF) B) and D)
G) A) and D)

Question 16

Volcanic activity was common in western North America during much of Cenozoic time.

Accepted Answer

A) True 
 B)False

Question 17

The theory for the formation of the solar system is known as the ________.

Accepted Answer

The answer of The theory for the formation of the...

Question 18

The time of the great extinction that took place at the end of the Mesozoic era is called the ________ or KT boundary.

Accepted Answer

Cretaceous-Tertiary

Question 19

During the early Paleozoic era, the ________ orogeny affected eastern North America from the present-day central Appalachians to Newfoundland.

Accepted Answer

The answer of During the early Paleozoic era, the ________...

Question 20

This least understood era of Earth's history has not been subdivided into briefer time units.

Accepted Answer

A)   Precambrian
B)   Paleozoic
C)   Mesozoic
D)   CenozoicE) A) and D)
F) All of the above

Exam 12: Earths Evolution Through Geologic Time

Toward the end of the Mesozoic era, the ________ orogeny formed the southern ranges of the Rocky Mountains.

Correct AnswerverifiedShow Answer

The ________ means "the Sun in the making."

Correct AnswerverifiedShow Answer

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Correct AnswerverifiedShow Answer

The beginning of the ________ era is marked by the appearance of the first life forms with hard parts.

Correct AnswerverifiedShow Answer

One hypothesis for the extinction that took place at the end of the Mesozoic is that a large ________ collided with Earth.

Correct AnswerverifiedShow Answer

Bacteria that thrive in oxygen free environments are called ________ bacteria.

Correct AnswerverifiedShow Answer

The most common Precambrian rock type is ________ rock.

Correct AnswerverifiedShow Answer

The major source of oxygen in Earth's atmosphere is from the decay of plants.

Correct AnswerverifiedFalse

Due to a virtual absence of land plants and certain animals, fossil fuels are notably absent in ________ rocks.

Correct AnswerverifiedShow Answer

Abundant fossil evidence did not appear in the geologic record until about ________.

Correct AnswerverifiedShow Answer

The age of Earth is about ________.

Correct AnswerverifiedD

During the ________ period, large evaporite deposits of rock salt and gypsum formed in North America.

Correct AnswerverifiedShow Answer

Each continent contains large "core areas" of Precambrian rocks referred to as ________.

Correct AnswerverifiedShow Answer

Western North America is the leading edge of the ________ plate.

Correct AnswerverifiedShow Answer

Earth's primitive atmosphere evolved from gases ________.

Correct AnswerverifiedShow Answer

Volcanic activity was common in western North America during much of Cenozoic time.

Correct AnswerverifiedShow Answer

The theory for the formation of the solar system is known as the ________.

Correct AnswerverifiedShow Answer

The time of the great extinction that took place at the end of the Mesozoic era is called the ________ or KT boundary.

Correct AnswerverifiedCretaceous-Tertiary

During the early Paleozoic era, the ________ orogeny affected eastern North America from the present-day central Appalachians to Newfoundland.

Correct AnswerverifiedShow Answer

This least understood era of Earth's history has not been subdivided into briefer time units.

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
False

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Cretaceous-Tertiary

Correct Answer
verified

Correct Answer
verified