Question 1

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

Accepted Answer

methane hydrate

Question 2

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)  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 3

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

Accepted Answer

A) True 
 B)False  True

Question 4

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 5

Climate change does not follow linear relationships.

Accepted Answer

A) True 
 B)False

Question 6

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. 
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 7

Water in the atmosphere can cause both warming and cooling.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is a greenhouse gas?

Accepted Answer

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

Question 9

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

Question 10

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. 
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 11

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

Question 12

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. 
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 13

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

Question 14

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

Question 15

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

Question 16

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

Accepted Answer

carbon dioxide, meth

Question 17

The Sun produces energy by __________ __________.

Accepted Answer

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

Question 18

__________ record a tree's growth depending on climate.

Accepted Answer

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

Question 19

The Mesozoic was a relatively warm era.

Accepted Answer

A) True 
 B)False

Question 20

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. 
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.

Exam 21: Climate Change

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

During photosynthesis:

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

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 __________ __________.

Climate change does not follow linear relationships.

Changes in the Earth's orbit around the Sun:

Water in the atmosphere can cause both warming and cooling.

Which of the following is a greenhouse gas?

Since the Earth formed, solar energy output:

Any process decreasing photosynthesis in an ecosystem will:

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.

Which of the following statements about climate change is true?

The Little Ice Age lasted from about __________.

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

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

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

The Sun produces energy by __________ __________.

__________ record a tree's growth depending on climate.

The Mesozoic was a relatively warm era.

Greenhouse gases:

Earth Systems

Minerals

Rocks

Geologic Time: a Story in the Rocks

Geologic Resources

The Active Earth: Plate Tectonics

Earthquakes and the Earths Structure

Volcanoes and Plutons

Mountains

Weathering, Soil, and Erosion

Fresh Water: Streams, Lakes, Ground Water, and Wetlands

Water Resources

Glaciers and Ice Ages

Deserts and Wind

Ocean Basins

Oceans and Coastlines

The Atmosphere

Energy Balance in the Atmosphere

Moisture, Clouds, and Weather

Climate

Motions in the Heavens

Planets and Their Moons

Stars, Space, and Galaxies

Filters

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

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 .

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.

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

The four industrial greenhouse gases are , , , and .

The Sun produces energy by .