Clouds are formed when water vapor in the atmosphere condenses into tiny water droplets or ice crystals. This process requires a few key ingredients:
- Moisture: There must be enough water vapor in the air. This can come from evaporation of water bodies, transpiration from plants, or other sources.
- Cooling: The air must cool down to a temperature where it can no longer hold all the moisture. This often occurs when warm air rises and expands, leading to cooling.
- Condensation Nuclei: Tiny particles such as dust, pollen, or smoke are necessary for the water vapor to condense upon. These particles provide a surface for the droplets to form.
When these conditions are met, the water vapor condenses around the condensation nuclei, forming droplets that come together to create clouds. Depending on the temperature and altitude, clouds can vary in type and appearance.