Water efficiency refers to using water in a way that minimizes waste while still meeting the needs of people, plants, and animals. This can involve practices such as fixing leaks, using water-saving fixtures, and implementing smart irrigation systems. By improving water efficiency, communities can conserve this vital resource and reduce costs associated with water supply and treatment. In agriculture, water efficiency is crucial for sustainable farming. Techniques like drip irrigation and rainwater harvesting help farmers use less water while maintaining crop yields. Overall, enhancing water efficiency contributes to environmental sustainability and helps ensure that clean water remains available for future generations.