Jupiter because it is a giant gas ball but the core is a liquid
The only outer planet without a thick atmosphere is Uranus. It has a thin atmosphere composed mostly of hydrogen and helium with traces of methane.
Uranus
Saturn has the moon Titan which has a thick hazy atmosphere.
Venus
Jupiter
Venus.
Venus is the hottest planet, as it is close to the sun and also has a thick carbon dioxide atmosphere that holds the heat effectively.Venus is extremely hot because its thick atmosphere, rich in carbon dioxide, traps heat energy from the sun.
Venus.
Venus has a thick atmosphere consisting mainly of carbon dioxide with traces of sulfuric acid.
Venus is a planet that has a smooth unmarked surface caused by a thick protective atmosphere. The atmosphere of Venus is mostly carbon dioxide, which is surrounded by sulfuric acid clouds.
Venus has an atmosphere that is so thick and dense that it is always cloudy. The clouds are composed of sulfuric acid droplets that completely obscure the planet's surface from view.
The answer is Pluto. I found this on wicapedia.:)