Precipitation refers to any form of water that falls from the atmosphere to the Earth's surface. It includes various forms such as rain, snow, sleet, and hail. Precipitation occurs when the air becomes saturated with water vapor, causing the water droplets or ice crystals to condense and become heavy enough to fall to the ground due to gravity. Precipitation is a crucial part of the Earth's water cycle and plays a significant role in replenishing freshwater resources, supporting plant growth, and shaping the climate.