When neighborhood residents a large number of dead fish in a local creek they traced the problem to a nearby gas station it turned out that a tank of gasoline had developed a leak A example of?

This situation is an example of environmental contamination, specifically a hazardous spill. The leak from the gasoline tank contaminated the water in the creek, leading to the death of fish and potentially affecting the entire local ecosystem. It also highlights the importance of monitoring and regulating underground storage tanks to prevent such incidents.