Only water vapor, unless it is winter, and then there would be snow and ice crystals.
Nebulae are clouds of dust and gas that are composed of various chemical elements.
Cirrus Clouds. They form about 9kms above sea level and are composed of ice crystals
Venus' atmosphere is composed of clouds of sulfuric acid, which is poisonous to us.
Cirrus clouds generally do not bring thunderstorms. They are high-level clouds composed of ice crystals and are typically associated with fair weather. Thunderstorms are usually associated with cumulonimbus clouds, which are large and dense clouds that can reach high altitudes and produce thunder, lightning, and heavy precipitation.
Venus is the warmest planet in the solar system. It has a thick atmosphere composed of carbon di oxide and sulfuric acid clouds. Hence, it is also called a cloudy planet.
Clouds do not 'carry' water, clouds are composed of water vapor.
Cirrus Clouds
Nebulae are clouds of dust and gas that are composed of various chemical elements.
Water droplets
Gaseous water is lighter than air. Clouds are composed (mainly) of gaseous water.
The clouds on Venus are composed of sulfuric acid, which likely originated from sulfur dioxide produced by volcanoes.
They are composed mostly of liquid water.
They are composed mostly of liquid water
Neptune is surrounded by thick layers of clouds in rapid motion. Winds blow these clouds at speeds up to 700 miles (1,100 kilometers) per hour. The clouds farthest from Neptune's surface consist mainly of frozen methane. Scientists believe that Neptune's darker clouds, which lie below the clouds of methane, are composed of hydrogen sulfide.
Cumulonimbus clouds are high clouds. The contain a large amount of moisture throughout and ice crystals at the top of the clouds. Strong convection currents and heavy winds are found in these clouds. Cumulonimbus clouds produce lightening and hail.
The only type of clouds that occur high enough to be propelled by the jet stream are cirrus clouds, which are composed mostly of ice crystals.
Just like clouds a network is also composed of layers, due to this analogy traditionally cloud representation is used.