Amazing Trivia Facts Quiz About Europa And Titan!

36 Questions | Total Attempts: 18

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Solar System Quizzes & Trivia

Welcome to this amazing trivia facts quiz about Europa and titan! Contrary to what you may think, there is a high chance that there are other places outside our solar system that can support life, and people suggest that Europa and titan may be the solution. Do take up the quiz and get to see just how much you know about these two bodies.


Questions and Answers
  • 1. 
    The first Jovian moons were discovered by
    • A. 

      Tycho

    • B. 

      Huygens

    • C. 

      Cassini

    • D. 

      Galileo

  • 2. 
    Which of the following best describes the internal structure of Europa?
    • A. 

      Thin icy crust, subsurface ocean of water, thick iron mantle, central rocky core

    • B. 

      Thin icy crust, subsurface ocean of water, thick rocky mantle, central iron core 

    • C. 

      Surface ocean of water, thick rocky mantle, central iron core

    • D. 

      Thin icy crust, thick rocky mantle, central iron core

  • 3. 
    The lack of large impact craters on the surface of Europa is consistent with
    • A. 

      The surface being covered with an ocean of liquid water

    • B. 

      Active volcanism that is constantly resurfacing the crust

    • C. 

      A subsurface ocean of water because large impacts will break the thin crust causing water and slushy ice below to flood out and resurface the crust 

    • D. 

       the crust being so thick and hard that impacts leave no marks on the surface

  • 4. 
    The largest Jovian moon Ganymede and Titan are
    • A. 

      Larger than Mercury but smaller than the Earth

    • B. 

      About the same size as Mars

    • C. 

      Larger than the Earth

    • D. 

      Larger than the Moon but smaller than Mercury

  • 5. 
    Perhaps the MOST convincing piece of evidence suggesting that Europa has a subsurface ocean is the
    • A. 

      Fact that calculations suggest that there is enough internal heat to keep the ice melted beneath the crust

    • B. 

       lack of impact craters on its surface

    • C. 

      Fact that the magnetic field of Jupiter is able to induce a magnetic field in Europa consistent with a salty ocean beneath its crust 

    • D. 

      Observation of iceberg like features on its surface

  • 6. 
    A probe placed in orbit about Europa would be able to confirm the presence of a subsurface ocean using a
    • A. 

       camera to observe the formation and breakup of icebergs on the surface

    • B. 

      Projectile to break the thin icy crust to reveal the water below

    • C. 

      Laser altimeter to detect the regular bulging of the thin icy crust on top of the ocean due to tidal forces 

    • D. 

       spectrometer to detect the spectral signature of liquid water at and beneath the surface

  • 7. 
    Life beneath the surface of Europa would most likely obtain energy from
    • A. 

      Radioactivity

    • B. 

      Tidal heating

    • C. 

      Jupiter

    • D. 

      The Sun

  • 8. 
    Which of the following is the most convincing observation that suggests that like Europa, Ganymede may also have a subsurface ocean?
    • A. 

      The presence of young grooved terrain that may be the result of cryovolcanism

    • B. 

      In addition to its internal magnetic field, Ganymede has a magnetic field induced by Jupiter which is consistent with a salty ocean beneath its crust 

    • C. 

       the detection of salts on the surface that may have been brought up from below the crust

    • D. 

      The fact that it is the largest moon in the solar system and, hence, should have plenty of internal heat to maintain liquid water beneath its surface

  • 9. 
    The fact that many of the larger Jovian moons orbit nearly in the equatorial plane of their host world, moving in the same direction as their planet's spin, suggest that they
    • A. 

      Formed from a rotating disk of gas and dust like a miniature solar system 

    • B. 

      Formed elsewhere in the solar system and were later captured

    • C. 

      Were formed from a giant impact between the host world and another body

    • D. 

      Were spun out from the rapidly spinning host world as it formed

  • 10. 
    In addition to being the largest moon in the solar system, Ganymede, the Galilean moon of Jupiter, is
    • A. 

      More geologically active than the Earth

    • B. 

       the only moon to show evidence for a subsurface ocean of water

    • C. 

      The only moon to have its own internal magnetic field 

    • D. 

       the only moon to have its own atmosphere

  • 11. 
    Which of the four Galilean moons is least likely to harbor life beneath its surface?
    • A. 

      Europa

    • B. 

      Io

    • C. 

      Callisto

    • D. 

      Ganymede

  • 12. 
     In addition to being the second-largest moon in the solar system, Saturn's moon Titan is
    • A. 

      The only moon to show evidence for a subsurface ocean of water

    • B. 

       the only moon to have its own internal magnetic field

    • C. 

      The only moon to have its own atmosphere 

    • D. 

      More geologically active than the Earth

  • 13. 
    What is believed to have been the main source of the Titan's atmosphere?
    • A. 

      Comet impacts

    • B. 

      Gas captured from the solar nebula

    • C. 

      We have no idea

    • D. 

      Outgassing from the interior

  • 14. 
    How is Titan, the moon of Saturn, similar to the Earth?
    • A. 

      Almost the same size of Earth

    • B. 

      Like the Earth has oceans of liquid water on its surface

    • C. 

      Like the Earth, has an atmosphere mostly of molecular nitrogen

    • D. 

      Has an internal magnetic field

  • 15. 
    In addition to nitrogen, the other main components of Titan's atmosphere are
    • A. 

      Hydrocarbons like methane and ethane

    • B. 

      Hydrogen and helium

    • C. 

      Ammonia and water vapor

    • D. 

      Oxygen and CO2

  • 16. 
    What is the origin of the nitrogen in Titan's atmosphere?
    • A. 

      Gas captured from the solar nebula

    • B. 

      Breakdown of ammonia by UV light from the Sun

    • C. 

      Outgassing from Titan's interior

    • D. 

      Impacts from comets

  • 17. 
    Methane should be rapidly destroyed in Titan's atmosphere, yet it is still present in appreciable amounts. How can this be?
    • A. 

      On the surface of Titan live cows that are constantly producing methane gas

    • B. 

      Comet impacts are constantly supplying the atmosphere with fresh methane

    • C. 

      Methane may be continually evaporating from the surface and the interior

    • D. 

      Larger hydrocarbons like ethane and propane are being broken down by ultraviolet light into methane

  • 18. 
    Titan is roughly the same size as Mercury, yet Titan has an atmosphere while Mercury does not. How can this be?
    • A. 

      Even though Titan's gravity is weak, it is much colder, allowing molecules to be trapped in its atmosphere 

    • B. 

       On its surface, Titan has volcanism that is constantly replenishing its atmosphere while Mercury does not

    • C. 

      Unlike Mercury, Titan is constantly being bombarded by icy comets that evaporate and maintain its atmosphere

    • D. 

      Although Titan is roughly the same size as Mercury, it is much denser, making its gravitational field stronger

  • 19. 
    Most of the smallest Jovian moons are most likely
    • A. 

      Captured objects from outside the solar system

    • B. 

      Fragments of other moons

    • C. 

      Small clumps of gas left over from the formation of the host planet

    • D. 

      Captured asteroids and comets 

  • 20. 
    During its descent into Titan's atmosphere, the Huygens probe found
    • A. 

      No sign of flowing or pooled liquids currently on the surface although channels carved in the past by fluids were seen 

    • B. 

      Small pools of liquids directly beneath its descent path

    • C. 

      Large oceans of liquid methane covering the entire surface

    • D. 

      A completely smooth, frozen surface with no sign that any liquids had ever been present

  • 21. 
    When the Huygens probe touched down on Titan, it landed
    • A. 

      In a shallow pool of liquid methane

    • B. 

      On the slopes of an icy volcano covered with water and methane ice

    • C. 

       in a vast ocean of liquid methane

    • D. 

      On a solid surface of frozen water and methane ices that resembled a streambed 

  • 22. 
    Which of the following has the Cassini orbiter observed on the surface of Saturn's moon Titan?
    • A. 

      Oceans of methane and ethane covering much of the surface

    • B. 

      No evidence for any liquid hydrocarbons at all

    • C. 

      Lakes of hydrocarbons in the north polar regions 

    • D. 

      Small pools of hydrocarbons close to the equator

  • 23. 
    Even though Titan has liquid methane on its surface, some internal heat, and plenty of carbon containing compounds, it is not a suitable place for life because
    • A. 

       there is too much volcanic activity on the surface

    • B. 

      It is far too cold, and methane is not a very good biological solvent 

    • C. 

      It has no ozone layer to protect the surface from harmful UV rays from the Sun

    • D. 

      Titan orbits within Saturn's radiation belt so its surface is completely sterilized by high energy particles

  • 24. 
    Saturn's icy moon Enceladus
    • A. 

      Has fountains of ice particles and water vapor spraying out from its surface 

    • B. 

      Has a smooth, icy surface criss crossed with dark cracks

    • C. 

      Has an ancient, heavily cratered surface reminiscent of the Moon

    • D. 

      Is small and irregular in shape like an asteroid

  • 25. 
    Neptune's moon Triton
    • A. 

       is in a nearly circular, prograde orbit around Neptune

    • B. 

      Is in a retrograde orbit, highly inclined to Uranus's equatorial plane

    • C. 

      Revolves in the opposite direction to Neptune's rotation 

    • D. 

       is in a highly eccentric retrograde orbit around Neptune

  • 26. 
    Triton's source of internal heat is mostly associated with
    • A. 

      Tidal heat left over from it being captured into orbit around Neptune 

    • B. 

      Radioactive decay

    • C. 

      Tidal heat associated with its elliptical orbit around Neptune

    • D. 

      Heat left over from its formation

  • 27. 
    If Triton has a subsurface ocean, it will most likely consist of
    • A. 

      Liquid nitrogen

    • B. 

      Liquid water

    • C. 

      Water mixed with ammonia, methane, or other melted ices

    • D. 

      Liquid ammonia and methane

  • 28. 
    Jovian moons are typically made of
    • A. 

      Rock and iron

    • B. 

      Solid rock

    • C. 

      Solid ice

    • D. 

      Ice and rock

  • 29. 
    Like our own moon, many Jovian moons exhibit what is called synchronous rotation. This means that they rotate at the same rate
    • A. 

      As all other moons around the host planet

    • B. 

      That they orbit their host planet

    • C. 

      That the host planet orbits about the Sun

    • D. 

      That their host planet rotates

  • 30. 
    The Galilean satellites, from largest to smallest, are
    • A. 

      Europa, Io, Callisto, Ganymede

    • B. 

      Ganymede, Callisto, Io, Europa

    • C. 

      Io, Europa, Ganymede, Callisto

    • D. 

      Callisto, Ganymede, Europa, Io

  • 31. 
    At the point on Earth furthest from the Moon, which direction is the tidal force pointing?
    • A. 

      Toward the moon

    • B. 

      Away from the moon

    • C. 

      Toward the sun

    • D. 

      Perpendicular to the line joining the point and the moon

  • 32. 
    What will NOT happen in the future of the Earth-Moon system?
    • A. 

      Earth will be in synchronous rotation with the moon

    • B. 

      Earth's day will get shorter

    • C. 

      The moon will get farther from earth

    • D. 

      The moon will take longer to orbit earth

  • 33. 
    How do scientists know there is a subsurface ocean on Europa?
    • A. 

      Magnetic field variations

    • B. 

      Large meteor impacts are observed to be immediately filled with ice

    • C. 

      Europa is rotating slower on its axis than it would if it had a rocky subsurface

    • D. 

      Satellites can easily determine the difference between ice, slush, and water

  • 34. 
    Which is NOT a characteristic of Io?
    • A. 

      In elliptical orbit

    • B. 

      Liquid water likely at base of craters at poles

    • C. 

      In synchronous rotation

    • D. 

      Lava and sulfur lakes on surface

  • 35. 
    All life on Earth has left-handed amino acids, while in meteorites they are half left and half right handed. What can we conclude scientifically?
    • A. 

      All amino acids are left-handed originally, but some will decay into right-handed

    • B. 

      Life almost certainly came from meteorites originally

    • C. 

      Something at the molecular level favours left over right handed amino acids in the first cells

    • D. 

      Life on Earth cannot originally have come from space

  • 36. 
    What is NOT true about the moon, Triton?
    • A. 

      Has volcanoes

    • B. 

      The largest moon of Uranus

    • C. 

      Has geysers and cantaloupe terrain

    • D. 

      Has internal heat source