Question 1

What is the most likely effect of the increased concentration of carbon dioxide in Earth's atmosphere since the 1800s?

Accepted Answer

A)  increased surface temperatures 
B)  decreased ultraviolet radiation at Earth's surface 
C)  decreased ocean temperatures 
D)  increased atmospheric density 
A)  increased surface temperatures 
B)  decreased ultraviolet radiation at Earth's surface 
C)  decreased ocean temperatures 
D)  increased atmospheric density

Question 2

If the Moon's mass were larger,which of the following would be true?

Accepted Answer

A)  Earth's rotation period would be longer. 
B)  Earth's rotation period would be shorter. 
C)  Earth's orbital period would be longer. 
D)  Earth's orbital period would be shorter. 
A)  Earth's rotation period would be longer. 
B)  Earth's rotation period would be shorter. 
C)  Earth's orbital period would be longer. 
D)  Earth's orbital period would be shorter.

Question 3

Lunar maria formed:

Accepted Answer

A)  near the end of the Late Heavy Bombardment. 
B)  near the beginning of the Late Heavy Bombardment. 
C)  near the beginning of the Early Bombardment. 
D)  during the Moon's formation. 
A)  near the end of the Late Heavy Bombardment. 
B)  near the beginning of the Late Heavy Bombardment. 
C)  near the beginning of the Early Bombardment. 
D)  during the Moon's formation.

Question 4

Earth's original atmosphere escaped into space because:

Accepted Answer

A)  Earth's gravity was weaker at the time. 
B)  it was ejected by comet and asteroid collisions. 
C)  it was chemically unstable. 
D)  it was composed of the lightest elements, hydrogen and helium. 
A)  Earth's gravity was weaker at the time. 
B)  it was ejected by comet and asteroid collisions. 
C)  it was chemically unstable. 
D)  it was composed of the lightest elements, hydrogen and helium.

Question 5

Which of the following lunar features is NOT a direct result of impacts with comets or asteroids?

Accepted Answer

A)  craters 
B)  rays 
C)  sinuous rills 
D)  terracing 
A)  craters 
B)  rays 
C)  sinuous rills 
D)  terracing

Question 6

The fission hypothesis states that the Moon formed when rotation pulled material away from the molten Earth.What is the primary objection to this scenario?

Accepted Answer

Earth was

Question 7

Aurorae are caused by:

Accepted Answer

A)  the breakdown of the ozone layer. 
B)  scattered sunlight. 
C)  charged particles trapped by Earth's magnetic field. 
D)  atmospheric turbulence. 
A)  the breakdown of the ozone layer. 
B)  scattered sunlight. 
C)  charged particles trapped by Earth's magnetic field. 
D)  atmospheric turbulence.

Question 8

What can you conclude about a large region of the Moon's surface with relatively few craters?

Accepted Answer

The surfac

Question 9

A long line of active volcanoes often marks:

Accepted Answer

A)  a plume. 
B)  an area of increased radioactivity. 
C)  a weak point in the crust. 
D)  the boundary of two plates. 
A)  a plume. 
B)  an area of increased radioactivity. 
C)  a weak point in the crust. 
D)  the boundary of two plates.

Question 10

Suppose a planet's atmosphere is composed of a mixture of elements and molecules.If the atmosphere's temperature increased,which of the following would be most likely to escape into space?

Accepted Answer

A)  water 
B)  helium 
C)  ionized oxygen 
D)  ozone 
A)  water 
B)  helium 
C)  ionized oxygen 
D)  ozone

Question 11

Which of the following is important for the greenhouse effect on Earth?

Accepted Answer

A)  carbon dioxide 
B)  methane 
C)  water vapor 
D)  all of the above 
A)  carbon dioxide 
B)  methane 
C)  water vapor 
D)  all of the above

Question 12

The Hawaiian Islands provide evidence for:

Accepted Answer

A)  mantle plumes. 
B)  sea-floor spreading. 
C)  mantle convection. 
D)  all of the above. 
A)  mantle plumes. 
B)  sea-floor spreading. 
C)  mantle convection. 
D)  all of the above.

Question 13

The most widely accepted theory for the formation of the Moon is the ________ hypothesis.

Accepted Answer

A)  binary 
B)  capture 
C)  fission 
D)  impact 
A)  binary 
B)  capture 
C)  fission 
D)  impact

Question 14

Uranium-238 undergoes radioactive decay with a half-life of 4.5 billion years,producing lead-206.After 13.5 billion years,what is the ratio of uranium-238 to lead-206 in a sample that originally contained only uranium-238?

Accepted Answer

A)  1:2 
B)  1:3 
C)  1:4 
D)  1:8 
A)  1:2 
B)  1:3 
C)  1:4 
D)  1:8

Question 15

The figure below shows the Earth-Moon system.At which of the marked locations do high tides occur?

Accepted Answer

A)  1 
B)  1 and 3 
C)  1 and 4 
D)  2 and 4 
A)  1 
B)  1 and 3 
C)  1 and 4 
D)  2 and 4

Question 16

The Moon formed primarily from:

Accepted Answer

A)  a captured planetesimal. 
B)  Earth's mantle. 
C)  Earth's core. 
D)  the same mixture of material as Earth. 
A)  a captured planetesimal. 
B)  Earth's mantle. 
C)  Earth's core. 
D)  the same mixture of material as Earth.

Question 17

A planet that experiences an increase in its atmospheric carbon dioxide concentration will also likely experience a(n):

Accepted Answer

A)  increase in the thickness of its polar ice caps. 
B)  decrease in its surface temperature. 
C)  increase in its magnetic field. 
D)  decrease in the density of elements lighter than carbon dioxide in the atmosphere. 
A)  increase in the thickness of its polar ice caps. 
B)  decrease in its surface temperature. 
C)  increase in its magnetic field. 
D)  decrease in the density of elements lighter than carbon dioxide in the atmosphere.

Question 18

Which of the following techniques has provided the most information to scientists studying the Moon's interior?

Accepted Answer

A)  craters 
B)  seismology 
C)  satellite orbits 
D)  drilling 
A)  craters 
B)  seismology 
C)  satellite orbits 
D)  drilling

Question 19

Which layers of Earth transport heat primarily through the bulk motion of material?

Accepted Answer

A)  outer core only 
B)  inner core only 
C)  outer core and mantle 
D)  all layers 
A)  outer core only 
B)  inner core only 
C)  outer core and mantle 
D)  all layers

Question 20

According to plate tectonics,where do most earthquakes occur?

Accepted Answer

At the bou

What is the most likely effect of the increased concentration of carbon dioxide in Earth's atmosphere since the 1800s?

If the Moon's mass were larger,which of the following would be true?

Lunar maria formed:

Earth's original atmosphere escaped into space because:

Which of the following lunar features is NOT a direct result of impacts with comets or asteroids?

The fission hypothesis states that the Moon formed when rotation pulled material away from the molten Earth.What is the primary objection to this scenario?

Aurorae are caused by:

What can you conclude about a large region of the Moon's surface with relatively few craters?

A long line of active volcanoes often marks:

Suppose a planet's atmosphere is composed of a mixture of elements and molecules.If the atmosphere's temperature increased,which of the following would be most likely to escape into space?

Which of the following is important for the greenhouse effect on Earth?

The Hawaiian Islands provide evidence for:

The most widely accepted theory for the formation of the Moon is the ________ hypothesis.

Uranium-238 undergoes radioactive decay with a half-life of 4.5 billion years,producing lead-206.After 13.5 billion years,what is the ratio of uranium-238 to lead-206 in a sample that originally contained only uranium-238?

The figure below shows the Earth-Moon system.At which of the marked locations do high tides occur?

The Moon formed primarily from:

A planet that experiences an increase in its atmospheric carbon dioxide concentration will also likely experience a(n):

Which of the following techniques has provided the most information to scientists studying the Moon's interior?

Which layers of Earth transport heat primarily through the bulk motion of material?

According to plate tectonics,where do most earthquakes occur?

Getting Started: Science, astronomy, and Being Human

A Universe Made, a Universe Discovered

A Universe of Universal Laws

A Universe of Universal Laws

The Architecture and Birth of Planetary Systems

Sibling Worlds: Mercury, Venus, and Mars

Gas, ice, and Stone: the Outer Planets

Life and the Search for Habitable Worlds

The Sun As a Star

Measuring the Stars: the Main Sequence and Its Meaning

Nursery of the Stars: the Interstellar Medium and Star Formation

To the Graveyard of Stars: the End Points of Stellar Evolution

Down the Rabbit Hole: Relativity and Black Holes

Our City of Stars: the Milky Way

A Universe of Galaxies

The Cosmic Web: the Large-Scale Structure of the Universe

Cosmology

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Exam 6: Home Base: Earth and Moon

What is the most likely effect of the increased concentration of carbon dioxide in Earth's atmosphere since the 1800s?

If the Moon's mass were larger,which of the following would be true?

Lunar maria formed:

Earth's original atmosphere escaped into space because:

Which of the following lunar features is NOT a direct result of impacts with comets or asteroids?

The fission hypothesis states that the Moon formed when rotation pulled material away from the molten Earth.What is the primary objection to this scenario?

Aurorae are caused by:

What can you conclude about a large region of the Moon's surface with relatively few craters?

A long line of active volcanoes often marks:

Suppose a planet's atmosphere is composed of a mixture of elements and molecules.If the atmosphere's temperature increased,which of the following would be most likely to escape into space?

Which of the following is important for the greenhouse effect on Earth?

The Hawaiian Islands provide evidence for:

The most widely accepted theory for the formation of the Moon is the ________ hypothesis.

Uranium-238 undergoes radioactive decay with a half-life of 4.5 billion years,producing lead-206.After 13.5 billion years,what is the ratio of uranium-238 to lead-206 in a sample that originally contained only uranium-238?

The figure below shows the Earth-Moon system.At which of the marked locations do high tides occur?

The Moon formed primarily from:

A planet that experiences an increase in its atmospheric carbon dioxide concentration will also likely experience a(n):

Which of the following techniques has provided the most information to scientists studying the Moon's interior?

Which layers of Earth transport heat primarily through the bulk motion of material?

According to plate tectonics,where do most earthquakes occur?

Getting Started: Science, astronomy, and Being Human

A Universe Made, a Universe Discovered

A Universe of Universal Laws

A Universe of Universal Laws

The Architecture and Birth of Planetary Systems

Sibling Worlds: Mercury, Venus, and Mars

Gas, ice, and Stone: the Outer Planets

Life and the Search for Habitable Worlds

The Sun As a Star

Measuring the Stars: the Main Sequence and Its Meaning

Nursery of the Stars: the Interstellar Medium and Star Formation

To the Graveyard of Stars: the End Points of Stellar Evolution

Down the Rabbit Hole: Relativity and Black Holes

Our City of Stars: the Milky Way

A Universe of Galaxies

The Cosmic Web: the Large-Scale Structure of the Universe

Cosmology

Filters