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The Chesapeake Bay, which is along the coast of the Eastern U.S., is the largest estuary in the country. Many rivers, including the Potomac, empty into this section of the Atlantic Ocean. During the 1970s,
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The Chesapeake Bay, which is along the coast of the Eastern U.S., is the largest estuary in the country. Many rivers, including the Potomac, empty into this section of the Atlantic Ocean.

During the 1970s, areas of the bay were found to have low levels of oxygen and could not support life. What was the cause of this problem?

User Prathamesh
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Answer: B. High levels of nitrogen and phosphorus from agriculture runoff, sewage, and etc

Step-by-step explanation:

i did it off study island

User Aaron Dufour
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