Labels:circle | crt screen | lamp | lepton | monitor | sky | tree OCR: STRUCTURE Gas Layer: 10 500 km thick Water and Ice Layer: 8,000 km thick Rocky Core: radius 000 km Composition Uranus has a rocky core about the size of Earth, composed of heavy elements mainly silicon and iron. An icy mantle 01 water methane and ammonia surrounds the core Like Jupiter and Saturn, Uranus does not have 'surface above the ice mixture of hydrogen helium and methane extends outward gradually decreasing in density toward the top of the atmosphere However since higher proportion of the planet is rock and ice, Uranus S more dense than its largel cousins
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