Question 82
MediumOriginal questionNeptune is the eighth and planet from the Sun, more than thirty times as far away as the Earth. It is dark, cold and extremely windy.
Like its neighbour Uranus, Neptune is called an ice giant. Under its thick, windy atmosphere of hydrogen, helium and methane lies a deep of water, ammonia and methane flowing over a solid about the size of the Earth. The methane in its air is what gives Neptune its deep blue colour.
The planet has six faint rings, which are very hard to see, and sixteen known moons.
Neptune's day is short, about sixteen hours. But its journey around the Sun is so long that one Neptune year lasts 165 Earth years. In other words, since it was discovered in 1846, Neptune has gone round the Sun only once.
Why is Neptune called an ice giant?
Show the answer and explanation
Correct answer: D
Explanation
The passage calls it an ice giant "Like its neighbour Uranus" and describes a deep soup of water, ammonia and methane over a solid core.
Worth noting
The passage does not describe snow on its surface.
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