Flow rate is a measure of how much fluid passes through a specific point in a given amount of time. It is commonly expressed in units like liters per second (L/s) or gallons per minute (GPM). Understanding flow rate is essential in various fields, including engineering, plumbing, and environmental science, as it helps determine the efficiency of systems that transport liquids. Factors affecting flow rate include the fluid's viscosity, the diameter of the pipe or channel, and the pressure driving the flow. For example, in a water supply system, a higher flow rate ensures that more water reaches homes and businesses quickly, while a lower flow rate may indicate blockages or inefficiencies in the system.