question

About a trillion comets are thought to be located far, far beyond Pluto in the

answer

Oort Cloud

question

The bright spherical part of a comet observed when it is close to the Sun is the

answer

coma

question

A comet's ____ stretches directly away from the Sun.

answer

plasma tail

question

A comet's ___ is the frozen portion of a comet.

answer

nucleus

question

Particles ejected from a comet can cause a ___ on Earth,

answer

meteor shower

question

The ___ extends from about beyond the orbit of Neptune to about twice the distance of Neptune from the Sun.

answer

Kuiper Belt

question

The largest planets also have the largest densities.

answer

False

question

The total mass of all the planets is much less than the mass of the Sun.

answer

True

question

Asteroids, meteoroids, and comets are remnants of the early solar system.

answer

True

question

If we were to construct an accurate scale model of the solar system on a football field with the Sun at one end and Neptune at the other, the planet closest to the center of the field would be

answer

Uranus

question

In the leading theory of solar system formation, the planets

answer

formed from the same flattened, swirling gas cloud that formed the Sun.

question

The solar system is differentiated because

answer

only rocky and metallic particles could form close to the Sun.

question

According to the chart in Discovery 4-1 in the textbook, an impact resulting in global catastrophe is expected to occur roughly once per

answer

Million Years

question

Which of the following are the Jovian planets?

answer

Jupiter, Saturn, Uranus, and Neptune only

question

Which planet by itself contains the majority of mass of all the planets?

answer

Jupiter

question

Planetary orbits

answer

are almost circular, with low eccentricities.

question

Which of the following is not icy in composition?

answer

Asteroids

question

In terms of ________, all the terrestrials are greater than any of the jovians.

answer

density

question

The Jovian Planets

answer

all have rings around their equators.

question

All the planets orbit the Sun in the ________ plane.

answer

Ecliptic

question

The Kuiper Belt is found where in the solar system?

answer

Beyond the orbit of neptune

question

The tail of a comet always points

answer

away from the Sun and becomes longest and brightest at perihelion.

question

The Oort Cloud is believed to be

answer

a spherical cloud of cometary nuclei far beyond the Kuiper Belt.

question

Which of the following have an icy composition?

answer

Comets

question

The most distant objects in our solar system are

answer

in the Oort Cloud.

question

The most detailed look we've had of an asteroid comes from

answer

Spacecraft sent to an asteroid

question

A meteorite is

answer

a chunk of space debris that has struck the ground.

question

The orbits of most comets

answer

lie almost entirely beyond the orbit of Neptune.

question

Objects in the Kuiper belt

answer

lie beyond the orbit of Neptune, and close to the ecliptic.

question

In terms of composition

answer

the jovian planets are more like the Sun than are the terrestrials.

question

As the solar nebula contracts it

answer

spins faster due to conservation of angular momentum.

question

According to the Solar Nebula theory, planets

answer

should be a common result of star formation.

question

As a rotating gas cloud contracts, it spins

answer

faster due to conservation of angular momentum.

question

So far, beyond the solar system the extrasolar planets found have been mostly

answer

large jovians with terrestrial-type orbits.

question

Most of the extrasolar planets found so far were detected by

answer

noting the Doppler shifts of the star as the planet orbits it from side to side.

question

Which statement about extrasolar planets found to date is true?

answer

Some are so close to their stars that their periods are just a few days.

question

All the terrestrial planets lie inside the asteroid belt.

answer

True

question

One characteristic of the Terrestrial planets is their extensive moon systems.

answer

False

question

Earth is nearly twice as large as Venus.

answer

False

question

All Jovian planets have rings around their equators and at least eight moons.

answer

True

question

Due to their great masses, all four Jovian worlds are much denser than the earth.

answer

False

question

Comets are not actually members of the solar system, but captured by the Sun.

answer

False

question

In addition to revolving around the Sun counter clockwise, most planets also rotate on their axis counter clockwise.

answer

True

question

Astronomers have not yet been able to detect planets outside our solar system.

answer

False

question

Relative to the comet, the direction of the ion tail tells us

answer

The direction of the sun

question

Meteor showers are

answer

usually annual events, as the orbits again intersect. & caused by the Earth passing near the orbit of an old short-period comet.

question

A meteor is

answer

a streak of light in the atmosphere.

question

Long-period comets are believed to originally come from

answer

The Oort Cloud

question

All the planets revolve around the Sun counter clockwise, except for Venus and Uranus.

answer

False

question

All the planets' orbits are even spaced.

answer

False

question

Pluto is more similar to the jovian planet's icy moons than to any of the other planets.

answer

True

question

A Kuiper Belt object was recently discovered that may be larger than Pluto.

answer

True

question

Barringer Crater in Arizona is an example of a meteorite impact.

answer

True

question

The Oort Cloud lies closer to the Sun than the Kuiper Belt.

answer

False

question

Some meteorites are believed to have come from Mars and the Moon.

answer

True

question

As a rotating gas cloud contracts, it spins faster.

answer

True

question

We would expect other planets beyond our own solar system to orbit the equators of their home stars, as our own planets orbit the Sun.

answer

True

question

The nucleus of a comet is typically

answer

a few kilometers in size, and very low in density.

question

The Manicouagan reservoir near Quebec is an example of

answer

a large meteorite impact.

question

the slowly increasing distance between South America and Africa is due to _______

answer

Seafloor Spreading

question

Old Faithful aquires its energy from a ___

answer

Hot Spot

question

layered ___ exposed by erosion can be seen when looking at the Grand Canyon

answer

Sedimentary Rock

question

Australia is composed of relatively old and thick_____

answer

Continental Crust

question

the extremely deep ocean Marianas Trench is a result of ____

answer

Subduction

question

___ found in Atlantic ocean between North America and Europe is composed of dense and relatively young rock

answer

Seafloor Crust

question

the earthquakes that occur in Southern California generally occur above a ___

answer

Fault

question

Earth's magnetic field is the result of our planet's large, permanently magnetized iron core.

answer

False

question

The deepest that geologists have drilled into Earth is about the same as

answer

the altitude most commercial jet airplanes fly.

question

If Earth had no Moon, then tides would

answer

occur with the same frequency, but would not be as strong.

question

Which of the following layers of the earth is unique among the terrestrial planets?

answer

Hydrosphere

question

What is true of spring tides?

answer

The difference between low and high tides would be greatest.

question

At what phase are the tides least noticeable?

answer

Third Quarter

question

What is true of the Moon's orbital and rotational periods?

answer

They are equal

question

Almost all of our atmospheric gases lie in the:

answer

Troposphere

question

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

answer

Ozone Layer

question

In what part of our atmosphere do we live?

answer

Troposphere

question

Without the greenhouse effect operating in our atmosphere,

answer

Earth would have an average temperature of -23 degrees Celsius.

question

The average rate of erosion on the Moon is far less than on Earth because

answer

the Moon lacks wind, water and an atmosphere.

question

We determine the structure of the Earth's core using

answer

Seismic Wave Data

question

Seismic waves are most useful for mapping:

answer

the Earth's core and mantle.

question

Which statement about seismic waves is true?

answer

P waves travel faster, and thus arrive sooner than do the S waves.

question

The rate of cratering in the lunar highlands shows us that

answer

they range from 4.6 - 4.4 billion years old, on average.

question

What is true of the lunar highlands?

answer

They are the oldest part of the lunar surface..

question

The presence of a magnetic field is a good indication that:

answer

we have a liquid metal outer core, spinning rapidly as we rotate.

question

When strong solar winds are displaced poleward by our magnetic fields, we get

answer

intense auroral displays.

question

Earth's magnetic field

answer

prevents charged particles in the solar wind from reaching the surface.

question

Which of these theories seems to best explain the Moon's origin?

answer

Impact Theory

question

Greenhouse gases in our atmosphere trap just enough heat to keep the earth's oceans liquid.

answer

True

question

The ozone layer is contained within the stratosphere.

answer

True

question

Seismic P-waves can travel through both solid and liquid materials.

answer

True

question

Seismic S-waves can travel through Earth's liquid outer core.

answer

False

question

In the past, most of the landmass on Earth was concentrated in a single, large continent.

answer

True

question

When plates collide, they fuse together and come to rest.

answer

False

question

The lunar mare radioactively date back to 4.6 billion years, at the origin of the Moon, hence their dark color due to this aging.

answer

False

question

The atmospheric gases primarily responsible for our greenhouse effect are

answer

water vapor and carbon dioxide.

question

The lunar mare are found

answer

mainly on the near side.

question

The region in which charged particles are trapped by our magnetic fields is the

answer

Van Allen radiation belt.

question

Our Earth is about four times larger than the Moon in diameter.

answer

True

question

The Earth's hotter, inner core is liquid and its cooler, outer core is solid.

answer

False

question

The tidal pull of the Moon is an example of a differential force, as the near and far sides of the Earth do not experience the same gravitational pull of the Moon.

answer

True

question

The Moon keeps one side facing the Earth because it doesn't rotate on its axis.

answer

False

question

Weather occurs in the troposphere.

answer

True

question

The continuing rise of carbon dioxide concentration in our troposphere is leading to worldwide cooling as dry ice forms at the poles.

answer

False

question

The three most abundant gases in our atmosphere are nitrogen, oxygen, and argon.

answer

True

question

There is no evidence for plate tectonics on the Moon today.

answer

True

question

Most lunar craters are volcanic in origin.

answer

False

question

Today most scientists favor the capture theory of the Moon's origin, since it would explain why the Moon still orbits in the ecliptic plane, as do other planets.

answer

False

question

Evidence of lava flows is common on the surface of Venus.

answer

True

question

Mercury's solar day is longer than its solar year.

answer

True

question

There are many indications of past plate tectonics on Mars.

answer

False

question

Valles Marineris is comparable in size to Earth's Grand Canyon.

answer

False

question

In relation to the density of Earth's Moon, Mercury's density suggests that the planet

answer

Has A Dense Metal Core

question

Venus's surface is permanently obscured by clouds. As a result, the surface has been studied primarily by

answer

Orbiting Satellites Using Radar

question

Compared with Earth, Venus has a level of plate tectonic activity that is

answer

Virtually Nonexistent

question

Venus's atmospheric temperature is

answer

hotter than temperatures on Mercury.

question

In terms of area, the extinct Martian volcano Olympus Mons is about the size of

answer

Colorado

question

In comparison to the atmosphere of Venus, the vastly different atmospheric character of Mars is likely due to a/an

answer

Reverse Greenhouse Effect

question

The most likely theory of the formation of Earth's Moon is that it

answer

formed from a collision of Earth with a Mars-sized object.

question

How does Mercury's rotation relate to the Sun?

answer

Its rotation rate is 2/3 as long as its year, due to tidal resonances.

question

Mercury presents the same side to the Sun

answer

Every Other Orbit

question

The atmospheric pressure on Venus:

answer

is much higher than on Earth.

question

What is the main constituent of the atmosphere of Venus?

answer

Carbon dioxide

question

The main constituent of the martian atmosphere is

answer

Carbon dioxide

question

Why are Mars' seasons more extreme than those of the earth? -Mars' axial tilt is slightly more than our 23.5 degrees. -Mars' seas dried up long ago. -Mars' orbit is more eccentric than our almost circular one. -Mars' weather is driven by evaporation from the polar ice in its summer. -All Contribute

answer

-All Contribute

question

One of the effects of Mercury's very slow spin is

answer

extreme variations in its surface temperature.

question

Mercury's surface most resembles which of these?

answer

the lunar far side

question

Our most detailed maps of Venus come from:

answer

the Magellan spaceprobe.

question

The surface of Venus can be observed with:

answer

radar observations from Arecibo.

question

Valles Marineris is the most striking example of a(n)

answer

Rift Valley

question

The deepest depression found on the surface of Mars is the

answer

Hellas Basin of Mars

question

The NASA missions that landed on Mars in 1976 were the

answer

Vikings I and II

question

The largest difference between Mars' northern and southern hemispheres is that:

answer

the southern appears older, with more impact craters.

question

The presence of a Mercurian magnetic field surprised the planetary scientists on the Mariner 10 team because

answer

the dynamo theory predicted that Mercury was spinning too slowly for one

question

The density of Mars is very similar to that of the other terrestrial planets.

answer

False

question

Venus can appear as a crescent through the telescope.

answer

True

question

Mercury's rotation and revolution are an example of a 3:2 resonance.

answer

True

question

Compared to Earth, Venus spins very rapidly.

answer

False

question

Mercury has the widest variation in surface temperatures between night and day of any planet in the solar system.

answer

True

question

The scarps on Mercury are extremely similar to the cratered lunar highlands in appearance.

answer

False

question

The surface temperature of Venus is 750K, even hotter than Mercury.

answer

True

question

No evidence of impact craters has been found on Venus.

answer

False

question

The surface of Mars is surprisingly smooth and featureless.

answer

False

question

The polar caps and dust storms of Mars can be seen with Earth-based amateur telescopes.

answer

True

question

The low surface gravity helps martian volcanoes grow to great heights.

answer

True

question

The seasonal polar caps on Mars, which grow and shrink over the year, are primarily carbon dioxide.

answer

True

question

Mars has a weak magnetic field.

answer

True

question

Carbon dioxide is the predominant atmospheric gas on Venus.

answer

True

question

Running water continues to be the major erosive factor of Mars today.

answer

False

question

Running water played a major role in shaping Mars in ancient times.

answer

True

question

Which planet shows the widest range of surface temperatures between day and night?

answer

Mercury

question

What is true of Mars?

answer

Iron oxide on the surface is responsible for its reddish color

question

Much of the water on Mars

answer

is thought to be in a layer of permafrost just below the surface.

question

Venus' surface temperature cools off at night, much like Mercury's does.

answer

False

question

Mars appears red in color because of refraction of light by its atmosphere, much like the color of the totally eclipsed Moon.

answer

False

question

Winds on Mars give rise to planet-wide dust storms.

answer

True

question

Mercury has an unusually small core.

answer

False

question

The Mars Rover found undisputed microfossils, proving life once existed on Mars.

answer

False

question

The solid surface of Jupiter lies just below the cloud layers that are visible from Earth.

answer

False

question

The solid surface of Jupiter lies just below the cloud layers that are visible from Earth.

answer

False

question

Jupiter emits more energy than it receives from the Sun.

answer

True

question

Although often referred to as a gaseous planet, Jupiter is mostly liquid in its interior.

answer

True

question

The magnetic fields of both Uranus and Neptune are highly tilted relative to their rotation axes and significantly offset from the planets' centers.

answer

True

question

The main constituent of Jupiter's atmosphere is

answer

Hydrogen

question

Saturn's cloud layers are much thicker than those of Jupiter because Saturn has

answer

Weaker surface gravity

question

Uranus was discovered about the same time as

answer

The U.S. Declaration of Independence

question

Compared with Uranus, the planet Neptune is

answer

Roughly the same size

question

Our most detailed knowledge of Uranus and Neptune comes from

answer

spacecraft exploration

question

Which three played a role in the finding of Neptune?

answer

Adams, Leverrier, and Galle

question

Small deviations in a planet's orbital motion

answer

imply the nearby presence of a massive body.

question

Adams and Leverrier both predicted the position of Neptune, based on its effects on:

answer

Uranus

question

Uranus was discovered

answer

less than 250 years ago

question

At which planet can the pole remain in darkness for 42 years, then have 42 years of constant daylight?

answer

Uranus

question

In terms of axial tilt, which of the jovians shows us the largest inclination?

answer

Uranus

question

If you could find a bathtub big enough for Saturn, the planet would:

answer

Float

question

The planet whose pole was facing the Sun when Voyager 2 approached in 1986 was

answer

Uranus

question

Which of these is true about the seasons of Uranus?

answer

Its strange tilt produces extreme seasonal variations, especially at the poles.

question

The reason the jovian planets lost very little of their original atmosphere is due to their

answer

Large mass

question

Studying the magnetospheres of the jovians has allowed us to measure their

answer

Rotation rate

question

Essentially, the Great Red Spot is

answer

a large cyclonic storm (hurricane).

question

Alternating zones of rising and sinking gas in Jupiter's atmosphere

answer

create light and dark bands

question

Which planet had the Great Dark Spot in 1989, but had lost it by 1995?

answer

Neptune

question

The magnetic field tilts of which two bodies are the most unusual?

answer

Uranus and Neptune

question

What is the source of Jupiter's intense radio waves and magnetism?

answer

liquid metallic hydrogen swirling in the rapidly spinning mantle

question

Jupiter gives back into space twice the energy it gets from the distant Sun. Where is this energy coming from, for the most part?

answer

the slow escape of gravitational energy left from its formation

question

What is true of Jupiter's magnetosphere?

answer

It has a tail that extends at least to Saturn's orbit.

question

What is thought to lie at the center of Jupiter?

answer

a massive core of rocky materials with some iron mixed in

question

Differential rotation is when a planet's equator and polar regions rotate at different rates.

answer

True

question

The zonal flows giving rise to the belts and zones are similar to the jet streams in our own stratosphere.

answer

True

question

While hydrogen, helium, water, and ammonia can produce the white coloration of Jupiter's zones, the brownish color of the belts requires more complex chemistry.

answer

True

question

We have observed a comet strike Jupiter.

answer

True

question

Jupiter's magnetic field is much stronger than Earth's, and has a magnetic tail that extends beyond the orbit of Saturn.

answer

True

question

Jupiter puts back into space twice the energy it gets from the Sun.

answer

True

question

William Herschel was the discoverer of Uranus.

answer

True

question

Changes in the predicted motion of Uranus led to the search for an eighth planet.

answer

True

question

Saturn is less dense than water.

answer

True

question

The axial tilts of Uranus and Neptune are similar.

answer

False

question

Helium is more abundant at Saturn than at Jupiter.

answer

False

question

Although it is almost the same size as Jupiter, Saturn's gravity is about 2.5 times less, because of Saturn's lower mass and density.

answer

True

question

Uranus' rotation axis is tipped over 98 degrees, so its magnetosphere is tipped over the same amount.

answer

False

question

Neptune has a larger fraction of methane in its atmosphere than Uranus.

answer

True

question

The two outer jovians appear bluish in color because

answer

methane gas in their atmospheres absorbs red light well.

question

A gravitational assist, or slingshot, can be used to either speed up or slow down a spacecraft.

answer

True

question

Galileo's early telescopes revealed the four large moons of Jupiter, the rings of Saturn, and its large moon Titan.

answer

False

question

Like the discovery of Uranus, the finding of Neptune was accidental.

answer

False

question

All four jovian planets are made primarily of hydrogen and oxygen.

answer

False

question

All four jovians spin faster than any of the terrestrials.

answer

True

question

Jupiter's Great Red Spot is similar to a hurricane on Earth.

answer

True

question

Jupiter's atmosphere looks uniform and calm, with no visible detail.

answer

False

question

There is less ammonia in the atmospheres of Uranus and Neptune than in Jupiter or Saturn.

answer

True

question

Methane absorbs red light readily, so we would expect a planet with a mostly methane atmosphere to appear blue.

answer

True

question

The following images show Earth and the four jovian planets of our solar system. Rank these planets from left to right based on their distance from the Sun, from closest to farthest. (Not to scale.) Neptune, Uranus, Jupiter, Earth, Saturn,

answer

Earth, Jupiter, Saturn, Uranus, Neptune

question

The following images show Earth and the four jovian planets of our solar system. Rank these planets from left to right based on their size (average equatorial radius), from smallest to largest. (Not to scale.) Neptune, Uranus, Jupiter, Earth, Saturn,

answer

Earth, Neptune, Uranus, Saturn, Jupiter

question

The following images show Earth and the four jovian planets of our solar system. Rank these planets from left to right based on their mass, from lowest to highest. (Not to scale.) Neptune, Uranus, Jupiter, Earth, Saturn,

answer

Earth, Uranus, Neptune, Saturn, Jupiter

question

The following images show five planets in our solar system. Rank these planets from left to right based on their average surface (or cloud-top) temperature, from highest to lowest. (Not to scale.) Neptune, Uranus, Jupiter, Earth, Saturn,

answer

Mercury, Earth, Mars, Jupiter and Neptune

question

The following images show five planets in our solar system. Rank these planets from left to right based on the amount of time it takes them to orbit the Sun, from longest to shortest. (Not to scale.) Neptune, Uranus, Jupiter, Earth, Saturn,

answer

Neptune, Jupiter, Mars, Earth and Mercury

question

The following images show four planets in our solar system. Rank these planets from left to right based on the number of moons that orbit them, from highest to lowest. (Not to scale.) Earth, Jupiter, Mars and Mercury

answer

Jupiter, Mars, Earth and Mercury

question

Listed following are some of the distinguishing geological characteristics of the moons orbiting Jupiter. Match each characteristic to the appropriate moon. - source of ionized gas in the donut-shaped charged particle belt around jupiter - ice covered surface with few impact craters - hot, glowing lava visible in some photos - heavily cratered terrain adjacent to much younger terrain - volcanoes currently erupting - largest moon in the solar system - surface features provide evidence of a subsurface liquid ocean

answer

Io - source of ionized gas in the donut-shaped charged particle belt around jupiter - hot, glowing lava visible in some photos - volcanoes currently erupting Europa - surface features provide evidence of a subsurface liquid ocean - ice covered surface with few impact craters Ganymede - largest moon in the solar system - heavily cratered terrain adjacent to much younger terrain

question

The largest moon in the solar system is ___

answer

Ganymede

question

The jovian moon with the most geologically active surface is ___

answer

Io

question

Strong evidence both from surface features and magnetic field data support the existence of a subsurface ocean on ___

answer

Europa

question

___ is responsible for the tremendous volcanic activity on Io

answer

Tidal Heating

question

__ is the most distant of Jupiter's four Galilean moons.

answer

Callisto

question

The fact that Europa orbits Jupiter twice for every one orbit of Ganymede is an example of a(n) ___

answer

Orbital Resonance

question

Saturn's rings are composed of __________.

answer

lots of individual particles of ice and rock

question

Saturn's rings look bright because __________.

answer

light from the Sun reflects off the material in the rings

question

Which of the following statements correctly describes the motion of the particles in Saturn's rings?

answer

Particles in the inner rings orbit Saturn at a faster speed than particles in the outer rings.

question

The composition of Saturn's ring particles is predominantly water ice.

answer

True

question

Saturn's rings exist because they lie within the planet's Roche limit.

answer

True

question

Two small shepherd satellites are responsible for the unusually complex form of Saturn's F ring.

answer

True

question

Titan's surface is obscured by thick clouds of ammonia ice.

answer

False

question

Triton's orbit is unusual because it is retrograde.

answer

True

question

The atmospheric pressure at the surface of Titan is

answer

about one-and-a-half times greater than the atmospheric pressure at Earth's surface.

question

Which of the Galilean moons is the densest and most geologically active?

answer

Io

question

Pluto's density is most similar to

answer

moons of the jovian planets

question

Pluto was discovered in

answer

1930

question

The two names most associated with the discovery of Pluto are

answer

Lowell and Tombaugh

question

Charon's orbit

answer

Is highly inclined to Pluto's orbital plane

question

Pluto is most similar to

answer

triton

question

What is so unusual about Pluto's orbit?

answer

It is more inclined to the ecliptic than any of the eight planets.

question

Triton and Pluto both probably originated in the Kuiper Belt.

answer

True

question

Pluto is smaller than many moons in the solar system.

answer

True

question

Pluto's classification as a planet has been called into question.

answer

True

question

Pluto is visible to the naked eye on extremely dark nights.

answer

False

question

Pluto is probably one of the largest of the Kuiper Belt bodies beyond Neptune.

answer

True

question

What is thought to be the cause of Io's volcanoes?

answer

gravitational tidal stresses from both Jupiter and Europa

question

Which are the four Galilean moons of Jupiter?

answer

Io, Europa, Ganymede, and Callisto

question

In size and density, both Io and Europa resemble

answer

our Moon.

question

The mare on Ganymede were formed by

answer

water erupting and spreading over the surface

question

Of the Jovian satellites, which shows the oldest, most cratered surface?

answer

Callisto

question

The largest moon in the solar system, bigger but not as massive as Mercury, is

answer

Ganymede

question

Which of these moons has the densest atmosphere?

answer

Titan

question

At Titan, the oceans are made of liquid

answer

ethane

question

The atmosphere of Titan is composed mostly of

answer

nitrogen

question

What is true of Titan's atmosphere?

answer

It is similar to Earth's in composition and density.

question

The erupting geysers of nitrogen gas on Triton

answer

are caused by a not yet determined internal energy source.

question

Which statement about Jupiter's rings is true?

answer

They lie inside Jupiter's Roche Limit.

question

Inside the Roche Limit

answer

large moons are torn apart.

question

The surface of Io looks most like the pack ice of the Arctic Ocean of Earth.

answer

False

question

Io's internal heat is due to tidal interactions with Jupiter and Europa.

answer

True

question

Of all the Galilean satellites, the surface of Europa is the youngest in age.

answer

False

question

Ganymede is the largest satellite in the solar system.

answer

True

question

Titan's surface has been mapped using Earth based visual telescopes.

answer

False

question

Methane drives the weather of Titan, for there it can be liquid, solid, or gas.

answer

True

question

Like Titan, Triton has a nitrogen atmosphere.

answer

True

question

Alone among all the large moons, Triton orbits Neptune retrograde, and also at a 20 degree inclination to Neptune's equator.

answer

True

question

Probably the next satellite to get turned into ring debris will be Neptune's backward moon, Triton.

answer

True

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