Zusammenfassung der Ressource
Frage 1
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Venus is sometimes referred to as the "evening star" or the "morning star".
Frage 2
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Which planet is Venus most similar to in diameter and mass?
Antworten
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Jupiter
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Earth
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Mars
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Saturn
Frage 3
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What is true about Venus' atmosphere?
Antworten
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It consists mostly of Carbon Dioxide (CO2), making up approximately 96% of the atmosphere.
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The atmospheric pressure is 90% stronger than Earth's.
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The atmosphere is extremely hot, due to an extreme or "runaway" greenhouse effect.
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All of the above.
Frage 4
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Because of Venus' thick atmosphere, night and day temperature only differ by a few degrees.
Frage 5
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What is true about Venus' surface?
Antworten
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It experiences plate tectonics similarly to the Earth's, causing many long mountain ranges, large canyons, and volcanoes along edges of plate boundaries.
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The surface of Venus is very different from Earth's. While it has many volcanoes, they did not form in a similar way to the Earth's volcanoes, suggesting that Venus' mantle does not experience convection.
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The surface of Venus is mostly flat without any traces of volcanoes, mountains, or craters.
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Venus' surface is mostly mountainous with many small crater impacts, though there is no trace of volcanoes.
Frage 6
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What is unique about Venus' rotation?
Antworten
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Venus has a "retrograde spin", meaning it spins backwards on its axis in comparison to other terrestrial planets.
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Venus rotates sideways on its axis.
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Venus rotates quicker than any other planet in our solar system, given it the shortest day.
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Due to "tidal locking" Venus' always has the same face pointed at the Sun.
Frage 7
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Venus spins on its axis slower than any other planet in the Solar System, causing it to have extremely long days and nights.
Frage 8
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At one point in time, Venus may have had liquid water, but what happened to it?
Antworten
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The water may have boiled away and sunlight broke down the H2O to allow hydrogen to escape.
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The water froze due to the extreme cold Venus' experiencing during night.
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The water became trapped in volcanic glass, causing "bubbles" in the rocks.
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The water became trapped in cracks Venus' thick crust, so it is no longer present on the surface.
Frage 9
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What caused Venus' weak magnetic field?
Antworten
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The interior of the planet is completely solid, making it impossible to generate anything but a residual magnetic field.
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The interior of the planet lacks any iron, which is necessary to generate a magnetic field.
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The dense atmosphere of the planet does not allow a magnetic field to form.
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The slow rotation rate causes a the process for generating a magnetic field to weaken, causing a lack of a magnetic field.
Frage 10
Frage
What evidence is there that the surface of Venus was covered by giant flows of lava a few hundred million years ago?
Antworten
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The surface is still very hot.
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The cracks present in the lava indicate its age.
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Radioactive dating was used to determine when it cooled.
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There are relatively few impact craters on Venus' surface.