Question 1

According to the figure below,how much has atmospheric carbon dioxide (CO₂) increased in parts per million (ppm) in approximately the last 50 years?

Accepted Answer

A)  from about 310 to 320 ppm
B)  from about 360 to 390 ppm
C)  from about 320 to 390 ppm
D)  from about 380 to 390 ppm

Question 2

Changes that occur ________ are called ________ changes.

Accepted Answer

A)  repeatedly;cyclic
B)  gradually;unidirectional
C)  slowly;cyclic
D)  quickly;unidirectional

Question 3

The hydrologic cycle includes which of these?

Accepted Answer

A)  the advance and retreat of glaciers
B)  the accumulation of methane in the atmosphere
C)  the secretion of carbonate shells by marine organisms
D)  photosynthesis

Question 4

Which of the following is an example of cyclic change?

Accepted Answer

A)  Earth colliding with an asteroid
B)  the creation of an ocean basin
C)  the formation of supercontinents
D)  the formation of mountains

Question 5

Life on Earth has changed drastically over time,including the occurrence of ________,which paved the way for the evolution of new species to fill old niches.

Accepted Answer

A)  supercontinents
B)  mass extinctions
C)  photosynthetic organisms
D)  glaciation

Question 6

Models used by the Intergovernmental Panel on Climate Change show that by the year 2100,the average annual temperature will have increased in some parts of the world by as much as ________.

Accepted Answer

A)  1°C
B)  2°C
C)  4°C
D)  8°C

Question 7

Some biologists think that ________ are causing a sixth mass-extinction event.

Accepted Answer

A)  the cosmic rays
B)  the tides
C)  humans
D)  asteroids

Question 8

The ratio of oxygen-16 and oxygen-18 isotopes in plankton fossils in deep-sea sediments can be used to determine ________.

Accepted Answer

A)  past carbon dioxide concentrations
B)  past temperatures
C)  the age of the fossils
D)  water depth

Question 9

Describe the changes that occur to a drop of water as it progresses through the following reservoirs in the hydrologic cycle: ocean,atmosphere,mountains,streams,ocean.

Accepted Answer

The drop of water in the ocean evaporate...

Question 10

Which of the following is NOT the result of human interaction?

Accepted Answer

A)  the loss of biodiversity
B)  climate change
C)  the hole in the ozone layer
D)  the existence of radioactive materials

Question 11

Which of the following situations could lead to icehouse conditions?

Accepted Answer

A)  a large volcanic eruption with a sharp decrease in the amount of vegetation on Earth
B)  a decrease in surface albedo due to melting glaciers plus an increase in sunspots
C)  the growth of large forests and increase of albedo from the growth of mountain glaciers
D)  a decrease in cosmic radiation along with a large volcanic eruption

Question 12

How are carbon dioxide (CO₂) levels in the atmosphere affected by tectonic uplift and subsequent chemical weathering of rocks?

Accepted Answer

A)  CO₂ is removed from the atmosphere.
B)  CO₂ is added to the atmosphere.
C)  CO₂ is removed by uplift and returned by weathering.
D)  They have no net effect on CO₂ .

Question 13

Most industrial nations have intentionally decreased their production and use of refrigerants and other chlorofluorocarbons in the last 20 years to address the ________.

Accepted Answer

A)  decrease in Arctic Sea ice cover
B)  decrease in plankton fecundity in tropical and subtropical waters
C)  increase in hurricane,typhoon,and tropical cyclone intensity and/or number
D)  decrease in atmospheric ozone over the Antarctic

Question 14

The shifting of the plates on Earth's surface is an example of ________ change.

Accepted Answer

A)  bidirectional
B)  unidirectional
C)  multidirectional
D)  cyclic

Question 15

Greenhouse gases heat Earth by absorbing the radiation from ________.

Accepted Answer

A)  the Sun
B)  the Moon
C)  Earth
D)  the stars

Question 16

According to the graph below,global temperatures are predicted to rise by as much as 4.5°C.What effect will this have on the area in which you live? Make sure to address the changes you might notice.

Accepted Answer

Answers will vary;however,if the area is...

Question 17

If the concentration of greenhouse gases in the atmosphere is high,Earth could experience ________.

Accepted Answer

A)  global warming
B)  global cooling
C)  icehouse conditions
D)  weaker storms

Question 18

The hole in the ozone layer has been brought about by anthropogenic emissions of ________.

Accepted Answer

A)  carbon dioxide
B)  methane
C)  chlorofluorocarbons
D)  water vapor

Question 19

The Anthropocene layer on Earth will show which of the following characteristics?

Accepted Answer

A)  a decrease in trace fossils
B)  nutrient-rich soils
C)  a decrease in biodiversity
D)  an increase in plant life

Question 20

Which of these is the longest-lasting sink for carbon dioxide?

Accepted Answer

A)  plant tissues and cellulose
B)  the atmosphere
C)  air bubbles within glacial ice
D)  limestones

Exam 19: Global Change in the Earth System

The shifting of the plates on Earth's surface is an example of ________ change.

Correct AnswerverifiedShow Answer

Which of the following situations could lead to icehouse conditions?

Correct AnswerverifiedShow Answer

If the concentration of greenhouse gases in the atmosphere is high,Earth could experience ________.

Correct AnswerverifiedShow Answer

Models used by the Intergovernmental Panel on Climate Change show that by the year 2100,the average annual temperature will have increased in some parts of the world by as much as ________.

Correct AnswerverifiedShow Answer

Most industrial nations have intentionally decreased their production and use of refrigerants and other chlorofluorocarbons in the last 20 years to address the ________.

Correct AnswerverifiedShow Answer

According to the graph below,global temperatures are predicted to rise by as much as 4.5°C.What effect will this have on the area in which you live? Make sure to address the changes you might notice.

Correct AnswerverifiedAnswers will vary;however,if the area is...View AnswerShow Answer

How are carbon dioxide (CO₂) levels in the atmosphere affected by tectonic uplift and subsequent chemical weathering of rocks?

Correct AnswerverifiedShow Answer

The hole in the ozone layer has been brought about by anthropogenic emissions of ________.

Correct AnswerverifiedShow Answer

The hydrologic cycle includes which of these?

Correct AnswerverifiedShow Answer

According to the figure below,how much has atmospheric carbon dioxide (CO₂) increased in parts per million (ppm) in approximately the last 50 years?

Correct AnswerverifiedShow Answer

Changes that occur ________ are called ________ changes.

Correct AnswerverifiedShow Answer

Some biologists think that ________ are causing a sixth mass-extinction event.

Correct AnswerverifiedShow Answer

Which of the following is an example of cyclic change?

Correct AnswerverifiedShow Answer

The Anthropocene layer on Earth will show which of the following characteristics?

Correct AnswerverifiedShow Answer

Life on Earth has changed drastically over time,including the occurrence of ________,which paved the way for the evolution of new species to fill old niches.

Correct AnswerverifiedShow Answer

Which of these is the longest-lasting sink for carbon dioxide?

Correct AnswerverifiedShow Answer

Describe the changes that occur to a drop of water as it progresses through the following reservoirs in the hydrologic cycle: ocean,atmosphere,mountains,streams,ocean.

Correct AnswerverifiedThe drop of water in the ocean evaporate...View AnswerShow Answer

Which of the following is NOT the result of human interaction?

Correct AnswerverifiedShow Answer

The ratio of oxygen-16 and oxygen-18 isotopes in plankton fossils in deep-sea sediments can be used to determine ________.

Correct AnswerverifiedShow Answer

Greenhouse gases heat Earth by absorbing the radiation from ________.

Correct AnswerverifiedShow Answer

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Answers will vary;however,if the area is...
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Changes that occur are called changes.

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The drop of water in the ocean evaporate...
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