Fog is a weather phenomenon that occurs when tiny water droplets are suspended in the air near the ground. It forms when warm, moist air cools down, causing the water vapor to condense into tiny droplets. This can create a thick, low-lying cloud that reduces visibility, making it difficult to see far ahead. Fog is most common in coastal areas, valleys, and during early mornings or late evenings. Driving in fog can be challenging, as it can obscure road signs and other vehicles. To stay safe, it's important to use low-beam headlights and reduce speed. Fog can also create a mysterious atmosphere, often seen in movies or literature, adding to its allure and beauty.