Question 1

56)Which of the following features best describes this object?

Accepted Answer

A) Blue star 
B) Planetary nebula 
C) Supernova 
D) Spiral galaxy 
A) Blue star 
B) Planetary nebula 
C) Supernova 
D) Spiral galaxy C

Question 2

50)What processes were occurring when this photograph was taken or at some time in the recent past?

Accepted Answer

A) Attraction of mass by gravity, formation of stars via nuclear fusion, and emission of electromagnetic radiation. 
B) Nuclear fusion and nucleosynthesis of helium, convection in the interior, emission of electromagnetic radiation and heat. 
C) Ejection of the outer envelope of gas and plasma. 
D) Nuclear fusion, gravitational attraction of material, and movement and rotation of a galaxy. 
A) Attraction of mass by gravity, formation of stars via nuclear fusion, and emission of electromagnetic radiation. 
B) Nuclear fusion and nucleosynthesis of helium, convection in the interior, emission of electromagnetic radiation and heat. 
C) Ejection of the outer envelope of gas and plasma. 
D) Nuclear fusion, gravitational attraction of material, and movement and rotation of a galaxy. C

Question 3

45)Which of the following statements best describes how this object may have formed?

Accepted Answer

A) A star ejected its outer envelope of gas and plasma. 
B) A supernova exploded, probably from the late-stage evolution of a high-mass star. 
C) Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen. 
D) Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation. 
A) A star ejected its outer envelope of gas and plasma. 
B) A supernova exploded, probably from the late-stage evolution of a high-mass star. 
C) Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen. 
D) Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation. D

Question 4

62)What processes were occurring when this photograph was taken or at some time in the recent past?

Accepted Answer

A) Nuclear fusion, gravitational attraction of material, and movement and rotation of the galaxy. 
B) Nuclear fusion and emission of energetic electromagnetic radiation. 
C) Nuclear fusion and nucleosynthesis of helium, convection in the interior, and emission of electromagnetic radiation and heat. 
D) Ejection of material from a star, at a high rate and in all directions. 
A) Nuclear fusion, gravitational attraction of material, and movement and rotation of the galaxy. 
B) Nuclear fusion and emission of energetic electromagnetic radiation. 
C) Nuclear fusion and nucleosynthesis of helium, convection in the interior, and emission of electromagnetic radiation and heat. 
D) Ejection of material from a star, at a high rate and in all directions.

Question 5

49)Which of the following statements best describes how this object may have formed?

Accepted Answer

A) A star ejected its outer envelope of gas and plasma. 
B) A supernova exploded, probably from the late-stage evolution of a high-mass star. 
C) Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen. 
D) Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation. 
A) A star ejected its outer envelope of gas and plasma. 
B) A supernova exploded, probably from the late-stage evolution of a high-mass star. 
C) Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen. 
D) Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation.

Question 6

48)Which of the following features best describes this object?

Accepted Answer

A) Spiral galaxy 
B) Star 
C) Supernova 
D) Planetary nebula 
A) Spiral galaxy 
B) Star 
C) Supernova 
D) Planetary nebula

Question 7

61)Which of the following statements best describes how this object may have formed?

Accepted Answer

A) Material accumulated into a sphere because of gravity, and underwent nuclear fusion of hydrogen. 
B) A supernova explosion, probably from the late-stage evolution of a high-mass star. 
C) A high-temperature star, formed by nuclear fusion. 
D) Accumulation of mass from an interstellar cloud with pockets of high-mass material becoming stars. 
A) Material accumulated into a sphere because of gravity, and underwent nuclear fusion of hydrogen. 
B) A supernova explosion, probably from the late-stage evolution of a high-mass star. 
C) A high-temperature star, formed by nuclear fusion. 
D) Accumulation of mass from an interstellar cloud with pockets of high-mass material becoming stars.

Question 8

38)What processes were occurring when this photograph was taken or at some time in the recent past?

Accepted Answer

A) Attraction of mass by gravity, formation of stars via nuclear fusion, and emission of electromagnetic radiation. 
B) Nuclear fusion, gravitational attraction of material, and movement and rotation of a galaxy. 
C) Nuclear fusion and nucleosynthesis of helium, convection in the interior, emission of electromagnetic radiation and heat. 
D) Ejection of the outer envelope of gas and plasma. 
A) Attraction of mass by gravity, formation of stars via nuclear fusion, and emission of electromagnetic radiation. 
B) Nuclear fusion, gravitational attraction of material, and movement and rotation of a galaxy. 
C) Nuclear fusion and nucleosynthesis of helium, convection in the interior, emission of electromagnetic radiation and heat. 
D) Ejection of the outer envelope of gas and plasma.

Question 9

53)Which of the following statements best describes how this object may have formed?

Accepted Answer

A) A high-temperature star, formed by nuclear fusion. 
B) Material accumulated into a sphere because of gravity, and underwent nuclear fusion of hydrogen. 
C) Accumulation of mass from an interstellar cloud with pockets of high-mass material becoming stars. 
D) A supernova explosion, probably from the late-stage evolution of a high-mass star. 
A) A high-temperature star, formed by nuclear fusion. 
B) Material accumulated into a sphere because of gravity, and underwent nuclear fusion of hydrogen. 
C) Accumulation of mass from an interstellar cloud with pockets of high-mass material becoming stars. 
D) A supernova explosion, probably from the late-stage evolution of a high-mass star.

Question 10

37)Which of the following statements best describes how this object may have formed?

Accepted Answer

A) Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation. 
B) A supernova exploded, probably from the late-stage evolution of a high-mass star. 
C) Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen. 
D) A star ejected its outer envelope of gas and plasma. 
A) Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation. 
B) A supernova exploded, probably from the late-stage evolution of a high-mass star. 
C) Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen. 
D) A star ejected its outer envelope of gas and plasma.

Question 11

51)What will likely happen to this object in the future?

Accepted Answer

A) The ejected material could be disbursed, with the material perhaps remaining in proximity to it. 
B) It could evolve into a more structured galaxy. 
C) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
D) It will continue to evolve with its stars going through their evolution. 
A) The ejected material could be disbursed, with the material perhaps remaining in proximity to it. 
B) It could evolve into a more structured galaxy. 
C) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
D) It will continue to evolve with its stars going through their evolution.

Question 12

57)Which of the following statements best describes how this astronomical object may have formed (image is computer generated)?

Accepted Answer

A) Material accumulated into a sphere because of gravity, and underwent nuclear fusion of hydrogen. 
B) Accumulation of mass from an interstellar cloud with pockets of high-mass material becoming stars. 
C) A high-temperature star, formed by nuclear fusion. 
D) A supernova explosion, probably from the late-stage evolution of a high-mass star. 
A) Material accumulated into a sphere because of gravity, and underwent nuclear fusion of hydrogen. 
B) Accumulation of mass from an interstellar cloud with pockets of high-mass material becoming stars. 
C) A high-temperature star, formed by nuclear fusion. 
D) A supernova explosion, probably from the late-stage evolution of a high-mass star.

Question 13

59)What will likely happen to this object in the future (image is computer generated)?

Accepted Answer

A) The material will continue outward and remain in interstellar space or become incorporated in other objects. 
B) The ejected material could be disbursed, with the material remaining in proximity to it. 
C) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
D) It will continue to evolve with stars going through their evolution. 
A) The material will continue outward and remain in interstellar space or become incorporated in other objects. 
B) The ejected material could be disbursed, with the material remaining in proximity to it. 
C) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
D) It will continue to evolve with stars going through their evolution.

Question 14

52)Which of the following features best describes this object?

Accepted Answer

A) Blue star 
B) Spiral galaxy 
C) Planetary nebula 
D) Barred spiral galaxy 
A) Blue star 
B) Spiral galaxy 
C) Planetary nebula 
D) Barred spiral galaxy

Question 15

63)What will likely happen to this object in the future?

Accepted Answer

A) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
B) The ejected material could be disbursed, with the material remaining in proximity to it. 
C) It will continue to evolve with stars going through their evolution. 
D) The material will continue outward and remain in interstellar space or become incorporated in other objects. 
A) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
B) The ejected material could be disbursed, with the material remaining in proximity to it. 
C) It will continue to evolve with stars going through their evolution. 
D) The material will continue outward and remain in interstellar space or become incorporated in other objects.

Question 16

47)What will likely happen to this object in the future?

Accepted Answer

A) It could evolve into a more structured galaxy. 
B) The ejected material could be disbursed, with the material remaining in proximity to it. 
C) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
D) It will continue to evolve with its stars going through their evolution. 
A) It could evolve into a more structured galaxy. 
B) The ejected material could be disbursed, with the material remaining in proximity to it. 
C) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
D) It will continue to evolve with its stars going through their evolution.

Question 17

43)What will likely happen to this object in the future?

Accepted Answer

A) It will continue to evolve with its stars going through their evolution. 
B) The ejected material could be disbursed, with the material remaining in proximity to it. 
C) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
D) It could evolve into a single star. 
A) It will continue to evolve with its stars going through their evolution. 
B) The ejected material could be disbursed, with the material remaining in proximity to it. 
C) It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. 
D) It could evolve into a single star.

Question 18

58)What processes are thought to be occurring during formation of this astronomical event (image is computer generated)?

Accepted Answer

A) Nuclear fusion and nucleosynthesis of helium, convection in the interior, and emission of electromagnetic radiation and heat. 
B) Ejection of material from a star, at a high rate and in all directions. 
C) Nuclear fusion, gravitational attraction of material, and movement and rotation of the galaxy. 
D) Nuclear fusion and emission of energetic electromagnetic radiation. 
A) Nuclear fusion and nucleosynthesis of helium, convection in the interior, and emission of electromagnetic radiation and heat. 
B) Ejection of material from a star, at a high rate and in all directions. 
C) Nuclear fusion, gravitational attraction of material, and movement and rotation of the galaxy. 
D) Nuclear fusion and emission of energetic electromagnetic radiation.

Question 19

40)Which of the following features best describes this object?

Accepted Answer

A) Spiral galaxy 
B) Nebula 
C) Supernova 
D) Star 
A) Spiral galaxy 
B) Nebula 
C) Supernova 
D) Star

Question 20

42)What processes were occurring when this photograph was taken or at some time in the recent past?

Accepted Answer

A) Ejection of the outer envelope of gas and plasma. 
B) Attraction of mass by gravity, formation of stars via nuclear fusion, and emission of electromagnetic radiation. 
C) Nuclear fusion, gravitational attraction of material, and movement and rotation of a galaxy. 
D) Nuclear fusion and nucleosynthesis of helium, convection in the interior, emission of electromagnetic radiation and heat. 
A) Ejection of the outer envelope of gas and plasma. 
B) Attraction of mass by gravity, formation of stars via nuclear fusion, and emission of electromagnetic radiation. 
C) Nuclear fusion, gravitational attraction of material, and movement and rotation of a galaxy. 
D) Nuclear fusion and nucleosynthesis of helium, convection in the interior, emission of electromagnetic radiation and heat.

56)Which of the following features best describes this object?

50)What processes were occurring when this photograph was taken or at some time in the recent past?

45)Which of the following statements best describes how this object may have formed?

62)What processes were occurring when this photograph was taken or at some time in the recent past?

49)Which of the following statements best describes how this object may have formed?

48)Which of the following features best describes this object?

61)Which of the following statements best describes how this object may have formed?

38)What processes were occurring when this photograph was taken or at some time in the recent past?

53)Which of the following statements best describes how this object may have formed?

37)Which of the following statements best describes how this object may have formed?

51)What will likely happen to this object in the future?

57)Which of the following statements best describes how this astronomical object may have formed (image is computer generated)?

59)What will likely happen to this object in the future (image is computer generated)?

52)Which of the following features best describes this object?

63)What will likely happen to this object in the future?

47)What will likely happen to this object in the future?

43)What will likely happen to this object in the future?

58)What processes are thought to be occurring during formation of this astronomical event (image is computer generated)?

40)Which of the following features best describes this object?

42)What processes were occurring when this photograph was taken or at some time in the recent past?

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Exam 2: Our Universe

56)Which of the following features best describes this object?

50)What processes were occurring when this photograph was taken or at some time in the recent past?

45)Which of the following statements best describes how this object may have formed?

62)What processes were occurring when this photograph was taken or at some time in the recent past?

49)Which of the following statements best describes how this object may have formed?

48)Which of the following features best describes this object?

61)Which of the following statements best describes how this object may have formed?

38)What processes were occurring when this photograph was taken or at some time in the recent past?

53)Which of the following statements best describes how this object may have formed?

37)Which of the following statements best describes how this object may have formed?

51)What will likely happen to this object in the future?

57)Which of the following statements best describes how this astronomical object may have formed (image is computer generated)?

59)What will likely happen to this object in the future (image is computer generated)?

52)Which of the following features best describes this object?

63)What will likely happen to this object in the future?

47)What will likely happen to this object in the future?

43)What will likely happen to this object in the future?

58)What processes are thought to be occurring during formation of this astronomical event (image is computer generated)?

40)Which of the following features best describes this object?

42)What processes were occurring when this photograph was taken or at some time in the recent past?

Climates Around the World, Energy, Matter in the Atmosphere, Soil, Unstable Slopes, Streams, Lakes, Groundwater, Glaciers, Shorelines, and Changing Seal Levels

Earth Materials

Plate Tectonics, Earth History, Deformation, Earthquakes, Volcanism and Other Igneous Processes

Sculpting Landscapes

Filters