What type of pollution is indicated by a backpack sprayer spilling into a storm drain?

The situation described involves a backpack sprayer spilling directly into a storm drain, which constitutes a specific, identifiable source of pollution. This scenario is classified as point source pollution because it originates from a single, identifiable source – in this case, the backpack sprayer. Point source pollution is typically more manageable in terms of regulation and monitoring since the source can be precisely located and the associated pollutants can be tracked.

In contrast, non-point source pollution involves contaminants that originate from diffuse sources, making them more challenging to control or measure. Examples include agricultural runoff or urban stormwater, where it's difficult to pinpoint a specific origin.

Indirect pollution refers to situations where pollutants are introduced to the environment through indirect means, typically from various activities that accumulate over time. Industrial pollution encompasses a broader category that can include both point and non-point sources but specifically refers to contaminants released by industrial activities.

Thus, in the context of the backpack sprayer spilling into a storm drain, it is clearly a case of point source pollution due to the direct and single nature of the contaminant's introduction into the environment.