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Unit 7 Assignment: The Terrestrial Planets
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Questions in this quiz (25)
1The reason that Venus has the least variation in temperatures at its surface between day and night is...
The reason that Venus has the least variation in temperatures at its surface between day and night is...- Athe apparent constant volcanic activity on its surface adds gases that fuel strong convection in the atmosphere and mixing of warm and cold air near the surface of the planet.
- Bthe higher atmospheric pressure mixes the air at ground level much more efficiently than on Earth (or elsewhere).
- Cthe planets slow rotation allows it to heat more slowly and evenly (and cool more slowly and evenly).
- Dthe planet's super-rotational mid-level winds spread heat out around the globe quickly and relatively evenly.
2Valles Marineris, the largest canyon in the solar system shows clear evidence that it was carved out of the Martian surface by huge volumes of flowing water early in Mars' history.
- ATrue
- BFalse
3Hollows are mysterious features found on Mercury that...
- Acould be places where sublimation or radiational erosion has occured on the planet's surface.
- Bcould be places where differences in the composition of crustal layers caused underground caverns to form when lower layers cooled and contracted.
- Ccould show the location of lava tubes buried under the planet's surface.
- Dcould be places in the bottoms of some craters where it is cold and dark enough for frozen water to exist.
- Ecould indicate locations where magma drained out of ancient volcanic chambers billions of years ago.
4Over the past 40 years, spacecraft visiting Mars have come across many forms of evidence that liquid water once existed on Mars' surface for extended periods of time. Which of the following is NOT one of those pieces of evidence?
- AThe first landers, Vikings 1 & 2 both spotted horizontally-layered features in the sides of nearby cliffs and hills that indicate that the layers were deposited down separately through sedimentation processes in ancient lakes or seas.
- BMars Global Surveyor spotted what looks from orbit like dried up runoff channels running downhill for 10s or even 100s of km in many locations on the surface of Mars.
- CCuriosity rover found beds of small rounded rocks mixed in layers of silt, sands and clay-like soils in what looks like a dried up stream or shoreline of an ancient lake in Gale crater.
- DMars rover Opportunity discovered round spherules called "blueberries" that, by their composition, most likely formed as condensates in shallow evaporating puddles saturated with minerals.
Mars rover Opportunity discovered round spherules called "blueberries" that, by their composition, most likely formed as condensates in shallow evaporating puddles saturated with minerals. - EMars Global Surveyor spotted what appears to be terraced land formations that could once have been shoreline beaches at Holden crater, near the boundary between the northern lowlands and southern highlands of Mars.
5The spacecraft that imaged the entire surface of Venus through thick clouds with the ability to resolve objects down to the size of 100m was named_______________________________________.
- AMessenger
- BMariner 2
- CMagellan
- DVerenas 16
- EPioneer Venus
6The temperature swing between the hottest point on Mercury's daylight side and the coldest point on its nighttime side is the biggest that there is for any planet in our solar system. The difference in temperatures is on average _________ degrees Celcius (or Kelvin)!
- A812
- B460
- C600
- D392
- E740
7Mars has an atmosphere that is almost entirely carbon dioxide.Why isn't there a strong greenhouse effect keeping the planet warm?
- AThe greenhouse effect requires an ozone layer, which Mars does not have
- BMars is too far from the sun for the greenhouse effect to work
- CThe atmosphere on Mars is too thin to trap a significant amount of heat
- DMars does not have enough internal heat to drive the greenhouse effect
- EThere actually is a strong greenhouse effect, and Mars would be 35oC colder than it is now without it
8What is the name of the first spacecraft to land on Mars and carry out experiments?
- AVenera 10
- BMariner 9
- CViking 1
- DAres 3
- EMariner 4
9The Tharsis Bulge is one of the most interesting features on any of terrestrial planet in our solar system. From the follow statements that describe it, decide which ones are true.
1. it actually comprises an enormous single volcanic caldera on the surface of Mars
2. it has resulted in cracking of its planet's crust nearly 1/4 of the way around.
3. it is the youngest surface feature on Venus and may still be geologically active.
4. it is the size of North America and rises 10 km above planet surface surrounding it.- AOnly 3 and 4 are true
- BOnly 1, 2, and 4 are true
- COnly 2 and 3 are true
- DOnly 1 and 2 are true
- EOnly 2 and 4 are true
10The atmospheric pressure on Venus
- Ais much higher than on Earth.
- Bcauses variations in surface temperature.
- Cis about the same as on Mercury.
- Dis much lower than on Earth.
- Eshows an extreme change with the seasons.
11Who was the first astronomer to officially report seeing long faint straight lines on the surface of Mars, which led some to promote the idea that there was life on Mars?
- AGiuseppe Piazzi
- BGiovanni Schiaparelli
- CCamille Flammarion
- DUrbain Leverrier
- EPercival Lowell
12The largest difference between Mars' northern and southern hemispheres is that
- Athe southern is much darker, with large mare-like basaltic lava flows.
- Bthe southern appears older, with a significantly higher elevation.
- Cthe northern is higher overall, despite some high volcanoes in the south.
- Dthe northern has all the outflows and must have been much hotter.
- Ethe southern has a polar cap, but none ever forms in the north.
13Mercury shows a number of geologic structures on its surface. Features call "scarps" are probably the result of...
- Aearly plate tectonic activity.
- Bvolcanism.
- Ca tidal bulge.
- Dmeteorite bombardment.
- Ethe crust cooling and shrinking.
14Volcanoes on Venus share similarities with volcanoes on Mars (such as the giant Olympus Mons volcano). What do they have in common?
- AThey are of a type known as shield volcanoes.
- BThey can only form near the equator of their planet.
- CThey are much larger than typical volcanoes on Earth.
- DThey have been extinct for billions of years.
- EThey formed where continental plates collided.
15Which of the following statements about the Hellas impact basin on Mars is NOT true?
- AIt is located almost exactly opposite the location of the Tharsis Bulge on the globe of Mars.
- BIn it you'll find the lowest point (in elevation) on the Martian surface.
- CIt most likely formed during the Late Heavy Bombardment era in the solar system, about 3.9 - 3.2 Billion years ago.
- DIts formation led to a major redistribution of crustal material across the southern highlands of the planet.
- EIt is recognized as the largest impact basin in the solar system.
16If an observer was standing on the surface of Mercury watching the Sun cross the sky, 1 full Mercurian day (from one sunrise to the next) would actually take... (see lecture slides (part 1))
- A243 Earth days
- B58 Earth days
- C88 Earth days
- D3 Earth days
- E176 Earth days
17The main reason for the paucity of impact craters on Venus is that its dense atmosphere heats and breaks up most infalling asteroids & meteoroids before they do significant damage to the surface.
- ATrue
- BFalse
18Charged solar wind particles can bombard Mercury's surface at times because planet's protective magnetic field shuts down periodically, only to returns at again at irregular intervals.
- ATrue
- BFalse
19There are many interesting geologic features on Mercury. Which is its most prominent (conspicuous) one?
- Athe giant scarps that run across its surface
- BThe Caloris Basin
- CThe intercrater plains
- Dthe mysterious "Spider Formation"
- Ethe "Hollows" found on its surface
20Although different in many ways, the planets Mars and Venus have some characteristics in common. For example, the composition of their atmospheres share some similarities. Which of the gases below is the most abundant in each of the planets' atmospheres?
- Anitrogen
- Bmethane
- Cargon
- Dsulphur dioxide
- Ecarbon dioxide
21What did astronomers using Earth-based radar find in the polar regions of Mercury?
- Apolar caps of dry ice that vary seasonally, much like Mars
- Blarge mare basins, such as near our Moon's south pole
- Cauroral displays much like Earth's
- Dwater ice frozen in craters that never receive sunlight
- Erift valleys
22Why do scientists believe that pure water cannot exist in liquid form on the surface of Mars for more than a few minutes?
- AThe extremely low air pressure would prevent it from staying in a liquid state.
- BThe high concentration of oxidizing chemicals in much of the martian soild would react with it quickly and convert it into other compounds.
- CThe extremely cold temperature all over the planet would prevent water in liquid form.
- DThe strong UV radiation that irradiates the martian surface would vapourize it almost immediately.
23Venus' surface is characterized by large continent-like crustal formations. Which of the following are among those continent-like features?
1) Ishtar Terra 2) Arabia Terra 3) Aphrodite Terra 4) Coronis Terra- Aanswers 1), 3) and 4) only
- Banswers 1) and 3) only
- Canswsers 1) and 2) only
- Dall answers are continent-like features
- Eanswers 2), 3) and 4) only
24The series of radar-bright concentric cracks (rings) and oval ridges that surround many volcanic domes on the surface of Venus are known as:
- Acoronae
- Bdorsae
- Cfossae
- Dtesserae
- Epaterae
25Much of the water on Mars
- Ais thought to be in a layer of permafrost just below the surface.
- Blies in shallow pools near the poles.
- Cis deposited in expansive glaciers located on the slopes of Mars' giant volcanoes.
- Dis in the form of clouds.
- Eis locked in the seasonal ice cap.
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- Quiz on Unit 7 Assignment: The Terrestrial Planets , created by Nya Niel on 16/12/2019.
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- Nya Niel
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