Question 1

A distinct area of unusually jumbled,hilly terrain has been found on Mercury.This terrain was formed by

Accepted Answer

A)  upwelling of magma while Mercury was still hot enough for its mantle to be tectonically active. 
B)  the impact of a large comet. 
C)  an intense shower of meteoroids near the end of the heavy bombardment era. 
D)  the focusing of seismic waves generated by the Caloris impact. 
A)  upwelling of magma while Mercury was still hot enough for its mantle to be tectonically active. 
B)  the impact of a large comet. 
C)  an intense shower of meteoroids near the end of the heavy bombardment era. 
D)  the focusing of seismic waves generated by the Caloris impact.

Question 2

The Hawaiian Islands experience continuous volcanic activity because they

Accepted Answer

A)  lie right on a boundary between tectonic plates. 
B)  happen to be at a focal point for seismic waves from earthquakes around the Pacific Ocean. 
C)  are in the center of a major ocean. 
D)  lie directly above a hot-spot plume in Earth's interior. 
A)  lie right on a boundary between tectonic plates. 
B)  happen to be at a focal point for seismic waves from earthquakes around the Pacific Ocean. 
C)  are in the center of a major ocean. 
D)  lie directly above a hot-spot plume in Earth's interior.

Question 3

The most geologically active object in the planetary system at the present time is

Accepted Answer

A)  Io,a moon of Jupiter. 
B)  Earth's Moon. 
C)  Earth. 
D)  Mars. 
A)  Io,a moon of Jupiter. 
B)  Earth's Moon. 
C)  Earth. 
D)  Mars.

Question 4

The overall geography of Mars can be best summarized as

Accepted Answer

A)  major volcanoes in the northern hemisphere,extensively cratered plains in the southern hemisphere,and the hemispheres separated by one major valley system. 
B)  moving lithospheric plates whose motions have produced long,folded mountain chains,deep subduction trenches,and several large rift valleys. 
C)  smooth plains where continuous resurfacing by ongoing volcanic activity has hidden older impact craters and other details. 
D)  mostly rolling plains,with several volcanoes on two continent-sized uplands. 
A)  major volcanoes in the northern hemisphere,extensively cratered plains in the southern hemisphere,and the hemispheres separated by one major valley system. 
B)  moving lithospheric plates whose motions have produced long,folded mountain chains,deep subduction trenches,and several large rift valleys. 
C)  smooth plains where continuous resurfacing by ongoing volcanic activity has hidden older impact craters and other details. 
D)  mostly rolling plains,with several volcanoes on two continent-sized uplands.

Question 5

The cloud structure of Venus can best be described as

Accepted Answer

A)  a perpetual thick cloud layer extending almost to ground level. 
B)  a perpetual thick cloud layer with a haze layer under it and clear air below the haze layer down to the surface. 
C)  mostly clear sky with occasional thin H2O and dust clouds. 
D)  isolated cloud systems constantly forming and dissipating with clear sky between them. 
A)  a perpetual thick cloud layer extending almost to ground level. 
B)  a perpetual thick cloud layer with a haze layer under it and clear air below the haze layer down to the surface. 
C)  mostly clear sky with occasional thin H2O and dust clouds. 
D)  isolated cloud systems constantly forming and dissipating with clear sky between them.

Question 6

The runaway icehouse effect took place on which planet?

Accepted Answer

A)  Mercury 
B)  Venus 
C)  Earth 
D)  Mars 
A)  Mercury 
B)  Venus 
C)  Earth 
D)  Mars

Question 7

Mars has a crust that is everywhere thicker than Earth's crust.What is the primary reason for this?

Accepted Answer

A)  Mars,being smaller,cooled more rapidly. 
B)  Mars is cooler because it is farther from the Sun. 
C)  Mars rotates too slowly to allow the crust to remain fluid. 
D)  Mars rotates too rapidly to allow the crust to remain fluid. 
A)  Mars,being smaller,cooled more rapidly. 
B)  Mars is cooler because it is farther from the Sun. 
C)  Mars rotates too slowly to allow the crust to remain fluid. 
D)  Mars rotates too rapidly to allow the crust to remain fluid.

Question 8

How did the LCROSS mission allow water to be detected on the Moon?

Accepted Answer

A)  It was a mission that allowed astronauts who landed on the moon to find frozen water on the surface of the Moon. 
B)  The mission produced man-made impacts in a dark crater in order to cause an explosive plume of debris to be ejected high above the surface that could be studied. 
C)  It was an Earth-based telescopic mission. 
D)  It included the launch of a spacecraft to orbit the Moon for the next 40 years to detect evaporated atmosphere produced by the Sun's UV rays. 
A)  It was a mission that allowed astronauts who landed on the moon to find frozen water on the surface of the Moon. 
B)  The mission produced man-made impacts in a dark crater in order to cause an explosive plume of debris to be ejected high above the surface that could be studied. 
C)  It was an Earth-based telescopic mission. 
D)  It included the launch of a spacecraft to orbit the Moon for the next 40 years to detect evaporated atmosphere produced by the Sun's UV rays.

Question 9

How does the atmosphere of Venus compare to Earth's atmosphere?

Accepted Answer

The atmosphere of Venus is much denser t

Question 10

The major chemical constituent of the layers of material continuously being deposited on the surface of Io,a moon of Jupiter,by Io's eruptive plumes is

Accepted Answer

A)  sulfur. 
B)  silicate dust and rock. 
C)  hydrogen. 
D)  water. 
A)  sulfur. 
B)  silicate dust and rock. 
C)  hydrogen. 
D)  water.

Question 11

What are some unique surface features of Venus?

Accepted Answer

Microwave radiation penetrated Venus's c

Question 12

Which planet has only about a few thousand craters uniformly spread across the planet's surface?

Accepted Answer

A)  Mercury 
B)  Venus 
C)  Mars 
D)  All of these 
A)  Mercury 
B)  Venus 
C)  Mars 
D)  All of these

Question 13

Which planets have impact craters on their surfaces?

Accepted Answer

A)  Mercury 
B)  Venus 
C)  Mars 
D)  All of these 
A)  Mercury 
B)  Venus 
C)  Mars 
D)  All of these

Question 14

What characteristic of Jupiter's moon Io makes it different from any other known satellite in the solar system?

Accepted Answer

A)  It has geyser-like plumes of nitrogen gas. 
B)  It is volcanically active. 
C)  It has a permanent,dense atmosphere that totally obscures the solid surface. 
D)  Its surface shows uncratered,flooded regions (now frozen)and other signs of geologically recent activity involving water. 
A)  It has geyser-like plumes of nitrogen gas. 
B)  It is volcanically active. 
C)  It has a permanent,dense atmosphere that totally obscures the solid surface. 
D)  Its surface shows uncratered,flooded regions (now frozen)and other signs of geologically recent activity involving water.

Question 15

Where does water exist in locations in the solar system besides Earth?

Accepted Answer

Water is found in frozen ice hidden in t

Question 16

From images from rovers on Mars,some rocks have a layered structure like sedimentary rocks on Earth.This suggests that

Accepted Answer

A)  liquid water was stable in at least some regions of Mars for a substantial period of time in the past. 
B)  volcanic and wind erosion processes alternate on Mars. 
C)  they were formed from crater-forming impacts. 
D)  life was prevalent on Mars in the past. 
A)  liquid water was stable in at least some regions of Mars for a substantial period of time in the past. 
B)  volcanic and wind erosion processes alternate on Mars. 
C)  they were formed from crater-forming impacts. 
D)  life was prevalent on Mars in the past.

Question 17

What are some unique surface features of Mars?

Accepted Answer

The crust of Mars makes up a single tect

Question 18

Why is Jupiter's moon,Io,so volcanically active?

Accepted Answer

As Io moves around its orbit,Jupiter and

Question 19

Valles Marineris on Mars may be a rift valley,a feature that is created when

Accepted Answer

A)  a planet cools and produces scarps. 
B)  a planet is cracked after a large impact. 
C)  tectonic plates collide. 
D)  a planet's crust breaks apart along a fault line. 
A)  a planet cools and produces scarps. 
B)  a planet is cracked after a large impact. 
C)  tectonic plates collide. 
D)  a planet's crust breaks apart along a fault line.

Question 20

What is a runaway greenhouse effect?

Accepted Answer

With a dense carbon dioxide atmosphere,V

A distinct area of unusually jumbled,hilly terrain has been found on Mercury.This terrain was formed by

The Hawaiian Islands experience continuous volcanic activity because they

The most geologically active object in the planetary system at the present time is

The overall geography of Mars can be best summarized as

The cloud structure of Venus can best be described as

The runaway icehouse effect took place on which planet?

Mars has a crust that is everywhere thicker than Earth's crust.What is the primary reason for this?

How did the LCROSS mission allow water to be detected on the Moon?

How does the atmosphere of Venus compare to Earth's atmosphere?

The major chemical constituent of the layers of material continuously being deposited on the surface of Io,a moon of Jupiter,by Io's eruptive plumes is

What are some unique surface features of Venus?

Which planet has only about a few thousand craters uniformly spread across the planet's surface?

Which planets have impact craters on their surfaces?

What characteristic of Jupiter's moon Io makes it different from any other known satellite in the solar system?

Where does water exist in locations in the solar system besides Earth?

From images from rovers on Mars,some rocks have a layered structure like sedimentary rocks on Earth.This suggests that

What are some unique surface features of Mars?

Why is Jupiter's moon,Io,so volcanically active?

Valles Marineris on Mars may be a rift valley,a feature that is created when

What is a runaway greenhouse effect?

Predicting the Motions of the Stars, Sun, and Moon

Decoding the Hidden Messages in Starlight

Analyzing Scales and Motions of the Universe

Exploring Our Evolving Solar System

Uncovering Earths Systems

Observing the Dynamic Giant Planets

Looking for Life Beyond Earth

Probing the Dynamic Sun

Observing Properties of Distant Stars

Inferring Patterns in Star Life Cycles

Predicting the Violent End of the Largest Stars

Exploring Our Galaxy

Investigating Other Galaxies

Observing the Evolution of the Universe

Filters

Exam 6: Exploring Terrestrial Surface Processes and Atmospheres

A distinct area of unusually jumbled,hilly terrain has been found on Mercury.This terrain was formed by

The Hawaiian Islands experience continuous volcanic activity because they

The most geologically active object in the planetary system at the present time is

The overall geography of Mars can be best summarized as

The cloud structure of Venus can best be described as

The runaway icehouse effect took place on which planet?

Mars has a crust that is everywhere thicker than Earth's crust.What is the primary reason for this?

How did the LCROSS mission allow water to be detected on the Moon?

How does the atmosphere of Venus compare to Earth's atmosphere?

The major chemical constituent of the layers of material continuously being deposited on the surface of Io,a moon of Jupiter,by Io's eruptive plumes is

What are some unique surface features of Venus?

Which planet has only about a few thousand craters uniformly spread across the planet's surface?

Which planets have impact craters on their surfaces?

What characteristic of Jupiter's moon Io makes it different from any other known satellite in the solar system?

Where does water exist in locations in the solar system besides Earth?

From images from rovers on Mars,some rocks have a layered structure like sedimentary rocks on Earth.This suggests that

What are some unique surface features of Mars?

Why is Jupiter's moon,Io,so volcanically active?

Valles Marineris on Mars may be a rift valley,a feature that is created when

What is a runaway greenhouse effect?

Predicting the Motions of the Stars, Sun, and Moon

Decoding the Hidden Messages in Starlight

Analyzing Scales and Motions of the Universe

Exploring Our Evolving Solar System

Uncovering Earths Systems

Observing the Dynamic Giant Planets

Looking for Life Beyond Earth

Probing the Dynamic Sun

Observing Properties of Distant Stars

Inferring Patterns in Star Life Cycles

Predicting the Violent End of the Largest Stars

Exploring Our Galaxy

Investigating Other Galaxies

Observing the Evolution of the Universe

Filters