Precipitation.
Clouds
Particles onto which water droplets form are called cloud condensation nuclei (CCN). These particles can include dust, sea salt, and pollution. When water vapor condenses onto these particles, it forms cloud droplets.
cloud droplets, which eventually grow in size and fall as precipitation, such as rain or snow.
When water droplets form around dust particles and become heavy enough to fall out of the clouds, we have precipitation. This process typically occurs when the droplets coalesce and grow larger through collision and merging with other droplets. Once they reach a sufficient size, gravity pulls them down to the earth as rain, snow, or other forms of precipitation. This is a crucial part of the water cycle, replenishing water sources on the ground.
Water droplets form around condensation nuclei, which are tiny particles in the atmosphere that provide a surface for water vapor to condense onto. This process is essential for the formation of clouds and precipitation. Examples of condensation nuclei are dust, salt particles, and pollutants.
Clouds form in the sky when water vapor condenses into water droplets. This process occurs when warm, moist air rises and cools, causing the water vapor to condense around particles in the atmosphere, such as dust or pollen, forming clouds.
Aerosols, such as dust, smoke, or pollution particles, act as nuclei for cloud droplets to form around in the atmosphere. These solid particles provide a surface for water vapor to condense onto, leading to the formation of cloud droplets.
Water turns into rain through a process called condensation. When water vapor in the air cools and forms tiny droplets around particles like dust or salt, clouds are created. As these droplets collide and combine, they grow larger and eventually fall as rain.
Conditions inside a cloud are not static: water droplets are constantly forming and re-evaporating. Most water droplets are formed when water vapor condenses around a condensation nucleus, a tiny particle of smoke, dust, ash or salt. In supersaturated conditions, water droplets may act as condensation nuclei.
Frozen water droplets are small particles of water in a solid state, formed when liquid water freezes due to low temperatures. These droplets can take various forms, such as snowflakes, ice pellets, or hail, depending on the specific conditions of temperature and humidity.
London-type smog forms when particles in coal smoke combine with water droplets in humid air.
Water droplets in clouds are small liquid particles that form when water vapor in the air condenses around tiny particles called cloud condensation nuclei. These droplets can collide and combine to form larger droplets, eventually leading to precipitation. The size of the water droplets in clouds determines whether they remain suspended in the cloud or fall as rain.