Define "non-point source pollution."

Non-point source pollution refers to pollution that originates from multiple, diffuse sources rather than a single, identifiable source. This type of pollution is typically characterized by its widespread nature, making it more challenging to regulate and control. It can arise from various activities and land uses, such as agricultural runoff, urban development, and natural events, where pollutants are carried into water bodies from rainfall or snowmelt as they flow over the land.

Since non-point sources do not have a fixed discharge point, tracking and managing this pollution presents unique challenges. Implementing practices to reduce non-point source pollution often involves a combination of improved land management, stormwater management systems, and community engagement efforts.

The other options describe conditions that do not capture this complexity; for instance, pollution from a single, identifiable source relates to point source pollution, while pollution from construction activities refers to specific activities rather than the broader diffuse nature of non-point pollution. Seasonal pollution describes variability rather than source characterization. Thus, defining non-point source pollution accurately is crucial for effective environmental management and regulatory efforts.