Question 1

The heaviest element produced by nuclear fusion in a young star is ________.

Accepted Answer

A)  nickel
B)  oxygen
C)  helium
D)  iron
E)  sodiumF) B) and D)
G) A) and C)

Question 2

The dominant life forms during the Cenozoic Era were ________.

Accepted Answer

A)  reptiles and gymnosperms
B)  fish and amphibians
C)  mammals and angiosperms
D)  prokaryotes and eukaryotesE) None of the above
F) C) and D)

Question 3

Birds evolved from ________.

Accepted Answer

A)  tree-climbing amphibians
B)  pterosaurs
C)  apatosaurus
D)  archaeopteryx
E)  gymnospermsF) B) and E)
G) A) and D)

Question 4

As they formed,due to their high temperatures and comparatively weak gravitational fields,which planets were unable to retain appreciable amounts of hydrogen,helium,and ammonia?

Accepted Answer

A)  Jupiter and Neptune
B)  Mercury and Earth
C)  Uranus and Pluto
D)  Jupiter and Uranus
E)  Neptune and UranusF) A) and E)
G) A) and D)

Question 5

Earth's core,mantle,and crust formed during the ________.

Accepted Answer

A)  Archaean
B)  Proterozoic
C)  Paleozoic
D)  Hadean
E)  TertiaryF) A) and E)
G) D) and E)

Question 6

During the Cenozoic era,a great wedge of sediments from the eroding Rockies created the Great Plains.

Accepted Answer

A) True 
 B)False

Question 7

The most common Precambrian fossils are ________,layered mounds of calcium carbonate.

Accepted Answer

A)  prokaryotes
B)  chert
C)  trilobites
D)  eukaryotes
E)  stromatolitesF) A) and C)
G) B) and E)

Question 8

If the earth did not have an atmosphere,there would still be a hydrologic cycle.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following was an important factor in determining the different parts of the solar system where the small rocky planets formed versus where the light,gaseous planets formed?

Accepted Answer

A)  density
B)  viscosity
C)  temperature
D)  gravity
E)  velocityF) A) and D)
G) B) and E)

Question 10

One important reason we do not know much about the geologic history of the Precambrian is that ________.

Accepted Answer

A)  rocks did not exist during much of that time
B)  the climate was so harsh that erosion removed most of the rocks that formed during the Precambrian.
C)  radioactivity was not measurable during the Precambrian
D)  we have not yet been able to establish the half-lives for radioactive elements that existed in the Precambrian
E)  there are very few fossils preserved in Precambrian rocksF) D) and E)
G) A) and B)

Question 11

The atmosphere of Venus is composed primarily of carbon dioxide.

Accepted Answer

A) True 
 B)False

Question 12

The Cenozoic era is the age of mammals.

Accepted Answer

A) True 
 B)False

Question 13

A major site of sediment deposition during the Cenozoic was ________.

Accepted Answer

A)  the Gulf of Mexico
B)  the Rocky Mountains
C)  the western coast of the U.S.
D)  the central U.S.
E)  central TexasF) D) and E)
G) A) and C)

Question 14

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

Accepted Answer

A)  Laurasia
B)  Pangaea
C)  Appalachia
D)  Gondwanaland
E)  EuropaF) A) and D)
G) None of the above

Question 15

At the start of the Triassic,most of the continents were above sea level,and sediments from that time are often red because ________.

Accepted Answer

A)  they contain extensive deposits of iron ore
B)  they are a major source of uranium and red quartz
C)  they include iron oxides
D)  the dry climate baked clays to form hornfels
E)  there are extensive dune fieldsF) B) and E)
G) A) and D)

Question 16

What were the three gases that made up Earth's original atmosphere?

Accepted Answer

water vapo...

Question 17

Extensive deposits of ________ ore are found worldwide in Precambrian rocks.

Accepted Answer

The answer of Extensive deposits of ________ ore are found...

Question 18

During the Mesozoic era,the earth developed its modern landscape and life forms.

Accepted Answer

A) True 
 B)False

Question 19

The Cenozoic era is often called the "age of ________."

Accepted Answer

The answer of The Cenozoic era is often called the...

Question 20

Which era is sometimes called the "age of dinosaurs"?

Accepted Answer

A)  Pleistocene
B)  Cenozoic
C)  Cretaceous
D)  Mesozoic
E)  none of theseF) B) and E)
G) All of the above

Exam 12: Earths Evolution Through Geologic Time

The dominant life forms during the Cenozoic Era were ________.

Correct AnswerverifiedShow Answer

Extensive deposits of ________ ore are found worldwide in Precambrian rocks.

Correct AnswerverifiedShow Answer

Which of the following was an important factor in determining the different parts of the solar system where the small rocky planets formed versus where the light,gaseous planets formed?

Correct AnswerverifiedShow Answer

The Cenozoic era is often called the "age of ________."

Correct AnswerverifiedShow Answer

During the Mesozoic era,the earth developed its modern landscape and life forms.

Correct AnswerverifiedShow Answer

A major site of sediment deposition during the Cenozoic was ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The atmosphere of Venus is composed primarily of carbon dioxide.

Correct AnswerverifiedShow Answer

The most common Precambrian fossils are ________,layered mounds of calcium carbonate.

Correct AnswerverifiedShow Answer

During the Cenozoic era,a great wedge of sediments from the eroding Rockies created the Great Plains.

Correct AnswerverifiedShow Answer

Earth's core,mantle,and crust formed during the ________.

Correct AnswerverifiedShow Answer

At the start of the Triassic,most of the continents were above sea level,and sediments from that time are often red because ________.

Correct AnswerverifiedShow Answer

What were the three gases that made up Earth's original atmosphere?

Correct Answerverifiedwater vapo...View AnswerShow Answer

The Cenozoic era is the age of mammals.

Correct AnswerverifiedShow Answer

If the earth did not have an atmosphere,there would still be a hydrologic cycle.

Correct AnswerverifiedShow Answer

One important reason we do not know much about the geologic history of the Precambrian is that ________.

Correct AnswerverifiedShow Answer

As they formed,due to their high temperatures and comparatively weak gravitational fields,which planets were unable to retain appreciable amounts of hydrogen,helium,and ammonia?

Correct AnswerverifiedShow Answer

Birds evolved from ________.

Correct AnswerverifiedShow Answer

The heaviest element produced by nuclear fusion in a young star is ________.

Correct AnswerverifiedShow Answer

Which era is sometimes called the "age of dinosaurs"?

Correct AnswerverifiedShow Answer

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water vapo...
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