2. Markings or features in the atmosphere are difficult to observe on Venus from Earth because it is (see Help & Hints)

too far away and the clouds are moving too fast.
only observed near sunrise or sunset when we are looking through a thicker portion of the Earth's atmosphere which causes more distortion.
so close to the sun that its glare prohibits a clear view.
so far away.

3. Choose the incorrect statement concerning the rotational properties of Venus.

Venus rotates slowly and in the opposite direction to other planets.
Its 243 day rotational rate was discovered by bouncing radar waves off its surface.
Venus' rotational rate is slow because it is one of the oldest planets.
Venus collided with an object that changed its rotational rate and direction.

4. From the radar images of the Venusian surface we can see

volcanoes, rolling plains and lobate scarps.
large volcanoes, plateaus and ocean basins.
small volcanoes, craters and lobate scarps.
volcanoes, plateaus and rolling plains.

5. Concerning the lack of a magnetic field on Venus, we can safely say

that is not generated due to the presence of a solid core.
the absence of an iron core is the cause.
we do not fully understand the reason.
that the dynamo effect has failed due to the age of Venus.

6. The surface of Venus is under a thick layer of

CO₂, nitrogen and hydrogen that creates a great atmospheric pressure and temperatures of about 900^oF.
CO₂ and nitrogen that creates a great atmospheric pressure and temperatures about 800^oF.
CO₂ that generate very strong, hot winds of about 700^oF.
CO₂ that creates a high atmospheric pressure and temperature of about 900^oF.

7. If the Earth was moved to the orbit of Venus, then

a lot less water would have accumulated on Earth.
a lot more limestone would have accumulated on Earth.
less CO₂ would have formed in the Earth's atmosphere.
the temperature of the Earth would be low due to the loss of water.

8. Which of the following is not a common feature on the surface of Mars?

craters, desert-like areas.
very large volcanoes
very large canyons
lobate scarps

9. Choose the best statement concerning the surface of Mars.

The northern hemisphere, due to its craters, is more like the moon.
The southern hemisphere, due to its one very large crater, is more like Venus.
The northern hemisphere, because of its large volcanoes, is somewhat more Earth-like.
The northern hemisphere, because of its many craters, is more like Venus.

10. It appears that plate tectonics

created as many features on Mars as it has on the Earth.
did not have a chance to really get started on Mars.
formed the same types of volcanoes on Mars as it has on the Earth.
led to the creation of large channels on Mars.

11. Since Mars is intermediate in size between the moon and the Earth, we can infer that it has

a medium amount of heat within.
less internal heat than the moon because it lacks large lava plains.
more internal heat than the Earth as evidenced by its large volcanoes.
more internal heat than the moon because of the plate tectonic activities that have occurred there.

12. The Martian atmosphere

is very thin because most of the CO₂ was dissolved into the water that once flowed there.
is very thin because the pressure is so low.
is very thin because Mars is less massive and could not hold its atmosphere as well as the Earth or Venus.
contains a lot of water during certain seasons.

13. Choose the incorrect statement or theory.

No liquid water, only frozen water exits on Mars.
Some 3 billion years ago rivers, lakes and a thick atmosphere existed on Mars.
Much larger floods occurred on Mars than happen now on Earth.
The climate on Mars has changed mainly in response to its change in distance from the sun.

Lesson 23 "Jupiter and Saturn"

14. Jupiter could best be described as a ball of liquid

helium whose tremendous pressures create a hot liquid interior.
helium whose tremendous pressures create a hot iron interior.
hydrogen whose tremendous pressures create a hot interior.
hydrogen with a pure iron core.

15. One main consequence of Jupiter's rapid rotation is

that atmospheric storms are stretched into zones and belts.
that all atmospheric storms are grouped into large spiraling cells of clouds.
that the atmospheric pressure is increased.
the creation of the coloration of the Great Red Spot.

16. Some enormous storms on Jupiter

persist for years due to the high atmospheric temperatures.
persist for years due to the lack of land masses to stop them.
persist for years due to the high atmospheric pressures.
come and go in response to the change in tilt.

17. Choose the incorrect statement concerning Jupiter's magnetic field.

The magnetic field is very large and strong.
The magnetosphere is much larger than the volume of the sun
The field is probably generated by the circulation of liquid metallic hydrogen in the deeper interior.
The field is probably generated by a dynamo moving liquid metallic helium in the core.

18. The continual resurfacing of the moon Io is from

sulfur volcanoes driven by a molten iron core.
sulfur volcanoes driven by the heat from impacts.
sulfur and other types of volcanoes driven by the gravity of Jupiter which heats Io's interior
pressurized water spraying and freezing to the surface.

19. The surface of the moon Callisto is thought to be very old because it

has not been resurfaced.
is very heavily cratered.
has some dark terrain that has been resurfaced.
has been resurfaced many times.

20. Compared to Jupiter, Saturn's atmosphere has

more hydrogen and colored components.
no zones or belts.
less obvious cloud structures.
little motion.

21. Compared to Jupiter, Saturn's interior

is mostly liquid metallic helium.
has less liquid metallic hydrogen and therefore a weaker magnetic field.
has less liquid helium and a lesser ability to create a magnetic field.
has less mass and is therefore hotter.

22. Choose the incorrect statement concerning the rings of Saturn.

They are composed of particles ranging in size from house size to dust.
They are composed of mostly water ice
They are not influenced by satellites (moons).
There are 1000's of ringlets that together give the appearance of broad rings.

23. One theory concerning the rings of Saturn suggest they are

young and left over material from the formation of Saturn.
relatively young and the result of a collision of an icy moon with a comet.
relatively old and the result of a collision of an icy moon with a comet.
old and too far from the planet to accrete into a moon.

24. Special features of the moon, Titan, include its

large size and thick atmosphere.
large size and thick (dense) methane atmosphere.
large size and influence on the ring structure of Saturn.
thick methane atmosphere and its likeness to the early Earth.

25. The rather smooth, young areas on the surface of Enceladus were probably caused by

tidal effects of Saturn.
tidal effects of Titan.
impacts that cracked the icy surface, causing resurfacing by flooding and refreezing.
radioactivity that warmed and cracked the icy surface, causing resurfacing by flooding and refreezing.

Prepared by: Mike Mitchell

Be sure to review your quizzes before taking the test.