• anonymous
The outer planets—Jupiter, Saturn, Uranus, and Neptune—are made up of which gases? A.methane, carbon dioxide, and ammonia B.methane, helium, and ammonia C.hydrogen, helium, and ammonia D.hydrogen, carbon dioxide, and ammonia
  • Stacey Warren - Expert
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  • katieb
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  • anonymous
C Hydrogen, helium and ammonia
  • anonymous
The Outer Planets, or Gas Giants, include Jupiter, Saturn, Uranus and Neptune. They are characterised by colourful, turbulent, cloudy atmospheres and do not have a solid surface on which one could land. Their atmospheres are mainly hydrogen and helium, with traces of other gases giving them their rich colours. Therefore.: The answer would Be C.hydrogen, helium, and ammonia As @GuitarNerd2015 had said. (:
  • greatlife44
hydrogen definitely, because that's the most abundant element so that eliminates A, and B. I would assume that Helium is more common on the sun. i agree with @chrissyC. and the guitar nerd

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