question 11\nthe greatest source of both nitrogen and phosphorus entering chesapeake bay is \nseptic…

question 11\nthe greatest source of both nitrogen and phosphorus entering chesapeake bay is \nseptic systems\nagriculture\nmunicipal and industrial wastewater\nurban fertilizer runoff\nnatural sources

question 11\nthe greatest source of both nitrogen and phosphorus entering chesapeake bay is \nseptic systems\nagriculture\nmunicipal and industrial wastewater\nurban fertilizer runoff\nnatural sources

Answer

Brief Explanations:

Agriculture involves the use of fertilizers rich in nitrogen and phosphorus. Run - off from agricultural fields is a major contributor to the nitrogen and phosphorus entering Chesapeake Bay. Other sources like septic systems, municipal and industrial wastewater, urban fertilizer runoff, and natural sources contribute less compared to agriculture.

Answer:

B. agriculture