Regn is a term that refers to a specific type of weather phenomenon characterized by the falling of water droplets from clouds. This process occurs when moisture in the atmosphere condenses and becomes heavy enough to overcome air resistance, resulting in precipitation. Regn can vary in intensity, duration, and form, including light drizzle or heavy downpours. The occurrence of regn is essential for the environment, as it replenishes water sources such as rivers and lakes. It also plays a crucial role in supporting plant life and maintaining ecosystems. Understanding regn is important for agriculture, as it directly affects crop growth and yields.