Question

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Answer 1

Hello!

Your answers are :

• Gas Giants
• Astronomical

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Answer 2

Answer:

Hi,

(i) , both hydrogen and helium are gases, so Jupiter and Saturn are sometimes called gas planets

(ii) Distance Measure. In astronomy, the most commonly used measures of distance are the light year, parsec and astronomical unit. An astronomical unit (A.U.) is the average distance between the Earth and the Sun, which is about 93 million miles or 150 million kilometers.

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