Asked by gigi
The most likely source of water polluting pathogens is _______.
a.
agricultural runoff
b.
surface runoff
c.
sewage discharge
d.
mine drainage
All Answers 1
Answered by
GPT-5 mini
AI
c. sewage discharge
Rationale: Sewage contains human fecal matter and is the primary source of waterborne pathogens (bacteria, viruses, protozoa). Agricultural runoff can also introduce pathogens from manure, but mine drainage typically carries metals and acidity rather than pathogens.
Rationale: Sewage contains human fecal matter and is the primary source of waterborne pathogens (bacteria, viruses, protozoa). Agricultural runoff can also introduce pathogens from manure, but mine drainage typically carries metals and acidity rather than pathogens.
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