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  1. Fog - Wikipedia

    In turn, fog affects many human activities, such as shipping, travel, and warfare. Fog appears when water vapor (water in its gaseous form) condenses. During condensation, molecules of water vapor …

  2. Fog | Definition, Formation, Types, & Facts | Britannica

    Fog is a cloud of small water droplets near ground level. It is formed by the condensation of water vapor on tiny particles that are always present in natural air; this occurs when the air becomes saturated …

  3. How Fog Forms - National Weather Service

    Steam fog forms when cold air moves over warm water. When the cool air mixes with the warm moist air over the water, the moist air cools until its humidity reaches 100% and fog forms.

  4. The strange science of how fog forms

    Jan 16, 2025 · Fog is made up of molecules of water vapour, suspended in the air as tiny droplets of water but lingering close to the surface. Essentially, fog is just cloud that touches Earth’s surface and …

  5. FOG Definition & Meaning - Merriam-Webster

    The meaning of FOG is vapor condensed to fine particles of water suspended in the lower atmosphere that differs from cloud only in being near the ground. How to use fog in a sentence.

  6. Fog - Definition, Types, Formation - Science Notes and Projects

    Oct 19, 2024 · Learn about fog in meteorology. Discover the definition, how and why fog forms, the different types, and how it differs from other phenomena.

  7. What are the different types of fog? - Met Office

    What are the different types of fog? Fogs which are mainly composed of water droplets are generally classified according to the physical process which produces saturation or near-saturation of...

  8. 25 Facts About Fog

    Jan 19, 2025 · Fog is one of nature's most mysterious and captivating phenomena. But what exactly is fog? Fog is essentially a cloud that touches the ground. It forms when the air near the surface cools …

  9. What is Fog and How Does it Develop? - AcuRite

    Oct 15, 2018 · Fog is a cloud that forms at ground level and reduces visibility less than 5/8 of a mile (1 km). Just like clouds, fog forms when the temperature equals the dew point temperature, and …

  10. Fog - Simple English Wikipedia, the free encyclopedia

    These water droplets make up the fog or mist. There are many types of fog, classified according to what makes the condensation. They include evaporation fog, advection fog, radiation fog, and upslope …