Question 1

Zircons found in continental rocks give evidence that continental crust was forming as long ago as ______.

Accepted Answer

A)   1.9 billion years ago
B)   10,000 years ago
C)   564 million years ago
D)   70 million years ago
E)   4.4 billion years agoF) D) and E)
G) B) and C)

Question 2

Evidence that Gondwana formed near the South Pole include ______.

Accepted Answer

A)   penguin fossils
B)   paleomagnetic data from the region
C)   identification of cold temperature mammals
D)   evidence of continental glaciationE) None of the above
F) C) and D)

Question 3

A major obstacle the first land plants had to overcome was______ .

Accepted Answer

A)   finding food on land where there were no organic compounds
B)   their lack of mobility because they needed water access
C)   eliminating waste materials in the atmosphere
D)   staying upright despite gravity and wind on land
E)   the large number of plant eating organisms on landF) B) and D)
G) B) and E)

Question 4

The Laramide Orogeny at the end of the Mesozoic produced ______.

Accepted Answer

A)   the Alps in Europe
B)   the Rocky Mountains in the western U.S.
C)   the Himalayan Mountains in Asia
D)   the Appalachian Mountains in the eastern U.S.
E)   the Ural Mountains in RussiaF) B) and E)
G) All of the above

Question 5

According to your text, which type of body would have looked similar to the photograph below in its early history?

Accepted Answer

A)   Earth
B)   the Sun
C)   Venus
D)   the MoonE) A) and B)
F) A) and C)

Question 6

What would have happened if Earth were located 10% further out from the Sun?

Accepted Answer

A)   Our atmosphere would consist mainly of nitrogen.
B)   Our Sun would have burned out after a few hundred million years so life would not evolve.
C)   Our atmosphere would consist mainly of carbon dioxide.
D)   Our oceans would all be frozen.E) A) and C)
F) B) and D)

Question 7

By the close of the Paleozoic, all the continents had fused into the single super continent of______ .

Accepted Answer

A)   Pangaea
B)   Europa
C)   Appalachia
D)   Laurasia
E)   GondwanalandF) A) and E)
G) B) and D)

Question 8

Which one of the following represents the greatest expanse of geological time?

Accepted Answer

A)   Precambrian
B)   Mesozoic
C)   Paleozoic
D)   CenozoicE) All of the above
F) None of the above

Question 9

When Earth's primitive surface cooled below water's boiling point, torrential rains slowly filled low areas, forming ______ .

Accepted Answer

A)   swamps
B)   rivers
C)   streams
D)   oceansE) A) and C)
F) None of the above

Question 10

Planetesimals, asteroid- size objects, form during the early history of the solar nebula due to ______.

Accepted Answer

A)   collisions of particles of ice, metal, and rocky material rotating about the protosun
B)   the formation of comets in the outer parts of the solar nebula
C)   the break- up of the solar nebula as it cools and contracts
D)   vortices in the rotating disc associated with the protosunE) A) and B)
F) A) and C)

Question 11

What group of animals were the first to leave the ocean to become the first amphibians?

Accepted Answer

A)   salamanders
B)   lobe- finned fish
C)   horn- beaked Cephalopods
D)   trilobitesE) B) and C)
F) A) and C)

Question 12

Planets in the making are referred to as ______.

Accepted Answer

A)   dwarf planets
B)   protoplanets
C)   terrestrial planets
D)   Jovian planetsE) A) and D)
F) None of the above

Question 13

One significant difference between oceanic and continental crust in terms of the long term evolution of Earth's surface is that______.

Accepted Answer

A)   continental crust is harder to subduct than oceanic crust
B)   continental crust is more uniform in composition than oceanic crust
C)   oceanic crust preserves a history of ancient deformation better than continental crust
D)   oceanic crust contains more radioactive elements that contribute to the heating of the earth
E)   oceanic crust is less dense than continental crustF) A) and E)
G) None of the above

Question 14

The beginning of the ______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 C)
F) A) and D)

Question 15

The ______era is the age of mammals.

Accepted Answer

A)   Cenozoic
B)   Precambrian
C)   Mesozoic
D)   PaleozoicE) None of the above
F) A) and B)

Question 16

Early Earth was hot because ______.

Accepted Answer

A)   a combination of collisions and radioactive decay produced heat
B)   the moon's formation from an giant impact produced heat
C)   gravitational collapse generates heat
D)   the Sun was much larger and heated the early planet
E)   there was still heat from the original big bangF) A) and D)
G) B) and D)

Question 17

At the start of the Mesozoic, the climate was______ .

Accepted Answer

A)   very warm
B)   very cold
C)   humid
D)   rapidly changing
E)   dryF) A) and E)
G) None of the above

Question 18

The beginning of the Phanerozoic is marked by the______ .

Accepted Answer

A)   existence of a modern atmosphere
B)   formation of large land masses
C)   abundant life forms compared to earlier times
D)   evolution of land plants and animals
E)   development of hard body parts, such as shells and bonesF) A) and D)
G) B) and E)

Question 19

The ______period was the "golden age of trilobites."

Accepted Answer

A)   Ordovician
B)   Devonian
C)   Silurian
D)   CambrianE) C) and D)
F) All of the above

Question 20

Following the reptilian extinctions at the close of the Mesozoic era, two groups of mammals, the marsupials and ______ , evolved and expanded.

Accepted Answer

A)   angiosperms
B)   placentals
C)   bipedals
D)   endothermsE) A) and B)
F) A) and C)

Exam 12: Earths Evolution Through Geologic Time

At the start of the Mesozoic, the climate was______ .

Correct AnswerverifiedShow Answer

Zircons found in continental rocks give evidence that continental crust was forming as long ago as ______.

Correct AnswerverifiedShow Answer

Early Earth was hot because ______.

Correct AnswerverifiedShow Answer

The Laramide Orogeny at the end of the Mesozoic produced ______.

Correct AnswerverifiedShow Answer

By the close of the Paleozoic, all the continents had fused into the single super continent of______ .

Correct AnswerverifiedShow Answer

Planetesimals, asteroid- size objects, form during the early history of the solar nebula due to ______.

Correct AnswerverifiedShow Answer

What group of animals were the first to leave the ocean to become the first amphibians?

Correct AnswerverifiedShow Answer

The beginning of the ______is marked by the appearance of the first life forms with hard parts.

Correct AnswerverifiedShow Answer

A major obstacle the first land plants had to overcome was______ .

Correct AnswerverifiedShow Answer

One significant difference between oceanic and continental crust in terms of the long term evolution of Earth's surface is that______.

Correct AnswerverifiedShow Answer

Which one of the following represents the greatest expanse of geological time?

Correct AnswerverifiedShow Answer

The ______period was the "golden age of trilobites."

Correct AnswerverifiedShow Answer

What would have happened if Earth were located 10% further out from the Sun?

Correct AnswerverifiedShow Answer

Planets in the making are referred to as ______.

Correct AnswerverifiedShow Answer

The beginning of the Phanerozoic is marked by the______ .

Correct AnswerverifiedShow Answer

When Earth's primitive surface cooled below water's boiling point, torrential rains slowly filled low areas, forming ______ .

Correct AnswerverifiedShow Answer

The ______era is the age of mammals.

Correct AnswerverifiedShow Answer

Following the reptilian extinctions at the close of the Mesozoic era, two groups of mammals, the marsupials and ______ , evolved and expanded.

Correct AnswerverifiedShow Answer

According to your text, which type of body would have looked similar to the photograph below in its early history?

Correct AnswerverifiedShow Answer

Evidence that Gondwana formed near the South Pole include ______.

Correct AnswerverifiedShow Answer

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