surface - Most of the Earth's .................... is covered by water., ice giant - Neptune is an........................................, planet, solar system - Jupiter is the biggest .................... in the ..........................., distance - The average ................ between the Earth and the moon is 384400km., century - Pluto was discovered in the 20th......................., atmosphere - Earth's ..................is mostly nitrogen, but it also has oxygen and carbon dioxide. , Circumference - The .................... of Jupiter is about eleven times the size of Earth.,

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