The outer planets-jupiter, saturn, uranus, and neptune-are made up of which gases ?

The outer planets—Jupiter, Saturn, Uranus, and Neptune—are made up of mainly hydrogen, helium and nitrogen. Jupiter and Saturn are primarily made up of hydrogen and helium. However, while Uranus and Neptune are primarily composed of hydrogen and helium also, they consist of more ices and methane than Jupiter and Saturn.

Explanation:

hydrogen, helium, and ammonia

Explanation:

Hydrogen and helium are mentioned by other answer-givers here, and they are correct. But if you are asking this based off of Gradpoint, the only answer that provides these two gases is combined with ammonia.

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.