Question 1

The Mesozoic was a relatively warm era.

Accepted Answer

A) True 
 B)False

Question 2

__________ record a tree's growth depending on climate.

Accepted Answer

A)   Tree isotopes
B)   Tree pollen
C)   Tree layers
D)   Tree rings

Question 3

Methane gas is stored in sea-floor sediments under certain temperature and pressure conditions as frozen __________ __________.

Accepted Answer

methane hydrate

Question 4

Which of the following statements about climate change is true?

Accepted Answer

A)   The Earth's mean global temperature has fluctuated throughout geologic time.
B)   The Earth's mean global temperature has increased steadily throughout geologic time.
C)   The Earth's mean global temperature has decreased steadily throughout geologic time.
D)   The Earth's mean global temperature has been relatively constant throughout geologic time.

Question 5

Changes in the Earth's orbit around the Sun:

Accepted Answer

A)   cannot cause climate change.
B)   cause climate change only when the continents are near the poles.
C)   may cause climate change by altering the frequency of sunspots.
D)   may have caused the advances and retreats of the Pleistocene glaciers.

Question 6

Since the Earth formed, solar energy output:

Accepted Answer

A)   has slowly decreased.
B)   has slowly increased.
C)   has first increased, then decreased.
D)   hasn't changed at all.

Question 7

Which of the following is a greenhouse gas?

Accepted Answer

A)   neon
B)   argon
C)   methane
D)   helium

Question 8

In Earth's history, the concentration of carbon dioxide and water in the atmosphere __________ gradually as the Sun __________.

Accepted Answer

A)   increased, warmed
B)   increased, cooled
C)   declined, warmed
D)   declined, cooled

Question 9

Any process decreasing photosynthesis in an ecosystem will:

Accepted Answer

A)   remove carbon dioxide from the air and increase global warming.
B)   remove carbon dioxide from the air and decrease global warming.
C)   add more carbon dioxide into the air and increase global warming.
D)   add more carbon dioxide into the air and decrease global warming.

Question 10

The four industrial greenhouse gases are __________ __________, __________, __________, and __________ __________.

Accepted Answer

carbon dioxide, meth...

Question 11

Water in the atmosphere can cause both warming and cooling.

Accepted Answer

A) True 
 B)False

Question 12

Weathering of carbonate rocks removes carbon dioxide from the atmosphere and cools the Earth.

Accepted Answer

A) True 
 B)False  True

Question 13

There is evidence that extreme cold periods 600 to 700 million years ago froze the oceans from pole to pole and covered the continents with glaciers, leading to a __________ __________.

Accepted Answer

The answer of There is evidence that extreme cold periods...

Question 14

During photosynthesis:

Accepted Answer

A)   carbon dioxide, which is a greenhouse gas, is removed from the atmosphere.
B)   carbon dioxide, which is not a greenhouse gas, is removed from the atmosphere.
C)   oxygen, which is not a greenhouse gas, is removed from the atmosphere.
D)   oxygen, which is a greenhouse gas, is removed from the atmosphere. A

Question 15

The Sun produces energy by __________ __________.

Accepted Answer

The answer of The Sun produces energy by __________ __________....

Question 16

Climate change does not follow linear relationships.

Accepted Answer

A) True 
 B)False

Question 17

About 55 million years ago, climate warmed. According to one model, surface water evaporated, and the salinity of seawater __________. This water __________ and __________ methane hydrates on the sea floor, leading to a/an __________ in global temperature.

Accepted Answer

A)   increased, sank, melted, increase
B)   decreased, sank, melted, increase
C)   decreased, floated on the surface, melted, increase
D)   increased, sank, froze, decrease

Question 18

Greenhouse gases:

Accepted Answer

A)   block infrared radiation and prevent heat from entering our atmosphere.
B)   prevent infrared radiation.
C)   reflect infrared radiation back into space.
D)   absorb infrared radiation and trap heat in our atmosphere.

Question 19

The Little Ice Age lasted from about __________.

Accepted Answer

A)   450 to 850
B)   1000 to 1400
C)   1450 to 1850
D)   1600 to 2000

Question 20

The ocean has become more acidic in the past decades, but marine organisms have not been affected by this.

Accepted Answer

A) True 
 B)False

Exam 21: Climate Change

The Mesozoic was a relatively warm era.

Correct AnswerverifiedShow Answer

__________ record a tree's growth depending on climate.

Correct AnswerverifiedShow Answer

Methane gas is stored in sea-floor sediments under certain temperature and pressure conditions as frozen __________ __________.

Correct Answerverifiedmethane hydrate

Which of the following statements about climate change is true?

Correct AnswerverifiedShow Answer

Changes in the Earth's orbit around the Sun:

Correct AnswerverifiedShow Answer

Since the Earth formed, solar energy output:

Correct AnswerverifiedShow Answer

Which of the following is a greenhouse gas?

Correct AnswerverifiedShow Answer

In Earth's history, the concentration of carbon dioxide and water in the atmosphere __________ gradually as the Sun __________.

Correct AnswerverifiedShow Answer

Any process decreasing photosynthesis in an ecosystem will:

Correct AnswerverifiedShow Answer

The four industrial greenhouse gases are __________ __________, __________, __________, and __________ __________.

Correct Answerverifiedcarbon dioxide, meth...View AnswerShow Answer

Water in the atmosphere can cause both warming and cooling.

Correct AnswerverifiedShow Answer

Weathering of carbonate rocks removes carbon dioxide from the atmosphere and cools the Earth.

Correct AnswerverifiedTrue

There is evidence that extreme cold periods 600 to 700 million years ago froze the oceans from pole to pole and covered the continents with glaciers, leading to a __________ __________.

Correct AnswerverifiedShow Answer

During photosynthesis:

Correct AnswerverifiedA

The Sun produces energy by __________ __________.

Correct AnswerverifiedShow Answer

Climate change does not follow linear relationships.

Correct AnswerverifiedShow Answer

About 55 million years ago, climate warmed. According to one model, surface water evaporated, and the salinity of seawater __________. This water __________ and __________ methane hydrates on the sea floor, leading to a/an __________ in global temperature.

Correct AnswerverifiedShow Answer

Greenhouse gases:

Correct AnswerverifiedShow Answer

The Little Ice Age lasted from about __________.

Correct AnswerverifiedShow Answer

The ocean has become more acidic in the past decades, but marine organisms have not been affected by this.

Correct AnswerverifiedShow Answer

Correct Answer
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Methane gas is stored in sea-floor sediments under certain temperature and pressure conditions as frozen .

Correct Answer
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methane hydrate

Correct Answer
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In Earth's history, the concentration of carbon dioxide and water in the atmosphere gradually as the Sun .

Correct Answer
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Correct Answer
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The four industrial greenhouse gases are , , , and .

Correct Answer
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carbon dioxide, meth...
View Answer

Correct Answer
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True

There is evidence that extreme cold periods 600 to 700 million years ago froze the oceans from pole to pole and covered the continents with glaciers, leading to a .

Correct Answer
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Correct Answer
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A

The Sun produces energy by .

Correct Answer
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Correct Answer
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About 55 million years ago, climate warmed. According to one model, surface water evaporated, and the salinity of seawater . This water and methane hydrates on the sea floor, leading to a/an in global temperature.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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