pH balance refers to the level of acidity or alkalinity in a solution, measured on a scale from 0 to 14. A pH of 7 is considered neutral, while values below 7 indicate acidity and values above 7 indicate alkalinity. Maintaining the right pH balance is essential for various biological processes, including those in the human body, where it affects enzyme function and overall health. In nature, pH balance plays a crucial role in ecosystems, influencing soil quality and water chemistry. For example, plants thrive in specific pH ranges, and aquatic life depends on balanced pH levels in water to survive. Understanding pH balance helps in agriculture, environmental science, and health management.