An aerosol is a suspension of tiny solid particles or liquid droplets in a gas, often air. Common examples include mist, fog, and spray from products like deodorants or air fresheners. Aerosols can be natural, such as sea spray or volcanic ash, or man-made, like those found in spray cans. They play a significant role in various processes, including weather patterns and air quality. Aerosols can affect health and the environment. When inhaled, certain aerosols can cause respiratory issues, while others contribute to climate change by influencing cloud formation and sunlight absorption. Understanding aerosols is essential for addressing issues related to air pollution and climate change.