Is fog a suspension?

Fog is not gaseous water vapor, but a liquid suspension formed by tiny water droplets that condense from water vapor in the air when it cools and then float in the air. For physical state, fog is liquid; these tiny droplets typically range from 1 to 100 micrometers in diameter and can reflect and scatter light, making them visible to the naked eye. Three conditions are required for fog to form: sufficient water vapor, a cooling process, and condensation nuclei (such as dust in the air). True water vapor is a colorless and odorless gas, while fog, as a liquid suspension, reduces visibility and affects driving safety. Drivers need to turn on fog lights and maintain a safe distance when driving.