What is the difference between point source and non-point source pollutants? Give examples.

• A. Non-point pollutants originate from identifiable discharges (e.g., a factory outfall); point pollutants come from diffuse sources (e.g., agricultural runoff, urban stormwater).
• B. Point sources originate from identifiable discharges (e.g., a factory outfall); non-point pollutants come from diffuse sources (e.g., agricultural runoff, urban stormwater).
• C. Point sources come from diffuse areas (e.g., farmland); non-point come from a single pipe.
• D. Point sources are natural; Non-point sources are anthropogenic.

Answer: (B)