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Saturn’s giant moon Titan is the only planetary

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Saturn’s giant moon Titan is the only planetary [#permalink] New post 22 Feb 2016, 06:04
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66% (01:28) correct 33% (01:14) wrong based on 33 sessions
Saturn’s giant moon Titan is the only planetary satellite with a significant atmosphere and the only body in the solar system other than Earth that has a thick atmosphere dominated by molecular nitrogen. For a long time, the big question about Titan’s atmosphere was how it could be so thick, given that Jupiter’s moons Ganymede and Callisto, which are the same size as Titan, have none. The conditions for acquiring and retaining a thick nitrogen atmosphere are now readily understood. The low temperature of the protosaturnian nebula enabled Titan to acquire the moderately volatile compounds methane and ammonia (later converted to nitrogen) in addition to water. The higher temperatures of Jupiter’s moons, which were closer to the Sun, prevented them from acquiring such an atmosphere.
21. According to the passage, Titan differs atmospherically from Ganymede and Callisto because of a difference in
A rate of heat loss
B proximity to the Sun
C availability of methane and ammonia
D distance from its planet
E size

[Reveal] Spoiler: OA
B



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Question: 21
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[Reveal] Spoiler: OA

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Re: Saturn’s giant moon Titan is the only planetary [#permalink] New post 22 Feb 2016, 06:05
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Explanations


According to the last two sentences of the paragraph, Titan was able to acquire an atmosphere because of a prevailing low temperature, but Ganymede and Callisto could not because they were at a higher temperature. Because the reason for this difference in temperature was their respective distances from the Sun, Choice B is correct. The passage says nothing about differences in rate of heat loss, availability of methane and ammonia, or distance from their planets, and it explicitly states that the three moons are the same size.
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Re: Saturn’s giant moon Titan is the only planetary [#permalink] New post 24 Jan 2018, 05:57
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whenever I record my timer it displays message that you are not authorized to use this timer...why so ?
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Re: Saturn’s giant moon Titan is the only planetary [#permalink] New post 27 Jan 2018, 12:11
tejalbharade wrote:
whenever I record my timer it displays message that you are not authorized to use this timer...why so ?

me too. I dont know whats going on
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Re: Saturn’s giant moon Titan is the only planetary [#permalink] New post 25 Feb 2018, 22:57
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Re: Saturn’s giant moon Titan is the only planetary [#permalink] New post 15 Oct 2018, 10:14
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I got it right in 01 : 33 is this speed fine ?!
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Re: Saturn’s giant moon Titan is the only planetary [#permalink] New post 15 Oct 2018, 13:58
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Re: Saturn’s giant moon Titan is the only planetary [#permalink] New post 16 Oct 2018, 12:33
Titan differs atmospherically from Ganymede and Callisto because of moderately volatile compounds methane and ammonia.
So why we aren't choosing answer option "c" ?
:(
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Re: Saturn’s giant moon Titan is the only planetary [#permalink] New post 18 Oct 2018, 10:54
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The higher temperatures of Jupiter’s moons, which were closer to the Sun, prevented them from acquiring such an atmosphere.

Which means that Titan was closer to the sun the other two celestial corps
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Re: Saturn’s giant moon Titan is the only planetary   [#permalink] 18 Oct 2018, 10:54
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