Question 1

Trenches are areas where the denser oceanic plates are subducted beneath the leading edges of lighter continental ones.

Accepted Answer

A) True 
 B)False

Question 2

What gas is the primary constituent of our atmosphere?

Accepted Answer

A)  oxygen 
B)  carbon dioxide 
C)  nitrogen 
D)  hydrogen 
E)  helium 
A)  oxygen 
B)  carbon dioxide 
C)  nitrogen 
D)  hydrogen 
E)  helium

Question 3

Which of these gases are outgassed from our volcanic eruptions?

Accepted Answer

A)  oxygen, methane, ammonia 
B)  carbon dioxide, water vapor, oxygen 
C)  ammonia, water vapor, oxygen 
D)  water vapor, methane, carbon dioxide 
E)  helium, carbon dioxide, methane 
A)  oxygen, methane, ammonia 
B)  carbon dioxide, water vapor, oxygen 
C)  ammonia, water vapor, oxygen 
D)  water vapor, methane, carbon dioxide 
E)  helium, carbon dioxide, methane

Question 4

Relate the formation of the Himalayas to plate tectonics.

Accepted Answer

In the last 30 million years,the northwa

Question 5

Which statement about seismic waves is FALSE?

Accepted Answer

A)  Both S and P waves can be detected by seismographs. 
B)  Close to the epicenter, both S and P waves can be recorded. 
C)  P waves travel faster, so the gap between their arrival times gives the source's distance. 
D)  Only P waves can be detected in the shadow zone. 
E)  S waves are blocked by the fluid outer core and cannot be observed on the other side of the planet from the epicenter. 
A)  Both S and P waves can be detected by seismographs. 
B)  Close to the epicenter, both S and P waves can be recorded. 
C)  P waves travel faster, so the gap between their arrival times gives the source's distance. 
D)  Only P waves can be detected in the shadow zone. 
E)  S waves are blocked by the fluid outer core and cannot be observed on the other side of the planet from the epicenter.

Question 6

The critical part of the atmosphere for protecting life on the ground from excessive ultraviolet radiation is the:

Accepted Answer

A)  hydrosphere. 
B)  troposphere. 
C)  ozone layer. 
D)  stratosphere. 
E)  ionosphere. 
A)  hydrosphere. 
B)  troposphere. 
C)  ozone layer. 
D)  stratosphere. 
E)  ionosphere.

Question 7

The Mid-Atlantic Ridge is the largest tectonic feature on our planet.

Accepted Answer

A) True 
 B)False

Question 8

At what phase would tidal variation be the least during the entire day?

Accepted Answer

A)  new moon 
B)  first quarter 
C)  waxing gibbous 
D)  full moon 
E)  waning crescent 
A)  new moon 
B)  first quarter 
C)  waxing gibbous 
D)  full moon 
E)  waning crescent

Question 9

Which major atmospheric component is chiefly a product of life processes?

Accepted Answer

A)  carbon dioxide 
B)  water 
C)  oxygen 
D)  hydrogen sulfide 
E)  nitrogen 
A)  carbon dioxide 
B)  water 
C)  oxygen 
D)  hydrogen sulfide 
E)  nitrogen

Question 10

When water vapor condenses out at the cool tops of convection cells,what happens?

Accepted Answer

A)  It rains. 
B)  It snows. 
C)  Clouds form. 
D)  A hurricane forms. 
E)  A tropical depression forms. 
A)  It rains. 
B)  It snows. 
C)  Clouds form. 
D)  A hurricane forms. 
E)  A tropical depression forms.

Question 11

What is true of spring tides?

Accepted Answer

A)  The third quarter Moon would be high overhead at dawn. 
B)  The difference between low and high tides would be greatest. 
C)  There would be one high and one low tide each day. 
D)  The Moon's phase will be first quarter. 
E)  The difference between low and high tides would be smallest. 
A)  The third quarter Moon would be high overhead at dawn. 
B)  The difference between low and high tides would be greatest. 
C)  There would be one high and one low tide each day. 
D)  The Moon's phase will be first quarter. 
E)  The difference between low and high tides would be smallest.

Question 12

What can we conclude about the structure of Earth's interior knowing that the average density of Earth is higher than the average density of the rock on the continents and seafloor?

Accepted Answer

A)  that Earth's most dense material must be water 
B)  that Earth's most dense material must be the seafloor and the continents 
C)  that Earth's most dense material must be beneath the surface 
D)  that Earth's least dense material must be the seafloor and the continents 
E)  that Earth's least dense material must be beneath the surface 
A)  that Earth's most dense material must be water 
B)  that Earth's most dense material must be the seafloor and the continents 
C)  that Earth's most dense material must be beneath the surface 
D)  that Earth's least dense material must be the seafloor and the continents 
E)  that Earth's least dense material must be beneath the surface

Question 13

What is the hole in the ozone layer thought to be caused by?

Accepted Answer

A)  greenhouse gases 
B)  carbon dioxide 
C)  water vapor 
D)  CFCs 
E)  acid rain 
A)  greenhouse gases 
B)  carbon dioxide 
C)  water vapor 
D)  CFCs 
E)  acid rain

Question 14

Above about 100 km,the high-energy portion of the Sun's radiation spectrum breaks down molecules into atoms.What is this part of Earth's atmosphere called?

Accepted Answer

A)  the troposphere 
B)  the stratosphere 
C)  the mesosphere 
D)  the ionosphere 
E)  the magnetosphere 
A)  the troposphere 
B)  the stratosphere 
C)  the mesosphere 
D)  the ionosphere 
E)  the magnetosphere

Question 15

At what phase are the tides least noticeable?

Accepted Answer

A)  new Moon 
B)  full Moon 
C)  third quarter 
D)  waxing crescent 
E)  waning gibbous 
A)  new Moon 
B)  full Moon 
C)  third quarter 
D)  waxing crescent 
E)  waning gibbous

Question 16

When strong solar winds are directed poleward,we see ________ at night.

Accepted Answer

The answer of When strong solar winds are directed poleward,we...

Question 17

The speed of the current warming trend is no different than those seen in fossil records.

Accepted Answer

A) True 
 B)False

Question 18

Within Earth's atmosphere the ozone layer is located:

Accepted Answer

A)  in the troposphere. 
B)  between the troposphere and the stratosphere. 
C)  in the stratosphere. 
D)  between the stratosphere and the mesosphere. 
E)  in the mesosphere. 
A)  in the troposphere. 
B)  between the troposphere and the stratosphere. 
C)  in the stratosphere. 
D)  between the stratosphere and the mesosphere. 
E)  in the mesosphere.

Question 19

Explain how radioactive dating works,and why it works only with igneous rocks.

Accepted Answer

Radioactive dating compares the amount o

Question 20

We determine the structure of the Earth's core using:

Accepted Answer

A)  deep mine shafts. 
B)  satellite imaging. 
C)  radar and sonar. 
D)  seismic wave data. 
E)  magnetic resonance imaging. 
A)  deep mine shafts. 
B)  satellite imaging. 
C)  radar and sonar. 
D)  seismic wave data. 
E)  magnetic resonance imaging.

Exam 7: Earth: Our Home in Space

Trenches are areas where the denser oceanic plates are subducted beneath the leading edges of lighter continental ones.

What gas is the primary constituent of our atmosphere?

Which of these gases are outgassed from our volcanic eruptions?

Relate the formation of the Himalayas to plate tectonics.

Which statement about seismic waves is FALSE?

The critical part of the atmosphere for protecting life on the ground from excessive ultraviolet radiation is the:

The Mid-Atlantic Ridge is the largest tectonic feature on our planet.

At what phase would tidal variation be the least during the entire day?

Which major atmospheric component is chiefly a product of life processes?

When water vapor condenses out at the cool tops of convection cells,what happens?

What is true of spring tides?

What can we conclude about the structure of Earth's interior knowing that the average density of Earth is higher than the average density of the rock on the continents and seafloor?

What is the hole in the ozone layer thought to be caused by?

Above about 100 km,the high-energy portion of the Sun's radiation spectrum breaks down molecules into atoms.What is this part of Earth's atmosphere called?

At what phase are the tides least noticeable?

When strong solar winds are directed poleward,we see ________ at night.

The speed of the current warming trend is no different than those seen in fossil records.

Within Earth's atmosphere the ozone layer is located:

Explain how radioactive dating works,and why it works only with igneous rocks.

We determine the structure of the Earth's core using:

Charting the Heavens: The Foundations of Astronomy

The Copernican Revolution: The Birth of Modern Science

Radiation: Information from the Cosmos

Spectroscopy: The Inner Workings of Atoms

Telescopes: The Tools of Astronomy

The Solar System: Comparative Planetology and Formation Models

The Moon and Mercury: Scorched and Battered Worlds

Venus: Earth's Sister Planet

Mars: A Near Miss for Life?

Jupiter: Giant of the Solar System

Saturn: Spectacular Rings and Mysterious Moons

Uranus and Neptune: The Outer Worlds of the Solar System

Solar System Debris: Keys to Our Origin

Exoplanets: Planetary Systems Beyond Our Own

The Sun: Our Parent Star

The Stars: Giants,Dwarfs,and the Main Sequence

The Interstellar Medium: Gas and Dust among the Stars

Star Formation: A Traumatic Birth

Stellar Evolution: The Life and Death of a Star

Stellar Explosions: Novae,Supernovae,and the Formation of the Elements

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: A Spiral in Space

Galaxies: Building Blocks of the Universe

Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos

Cosmology: The Big Bang and the Fate of the Universe

The Early Universe: Toward the Beginning of Time

Life in the Universe: Are We Alone?

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