Answer:
The correct answer will be "Eutrophication caused by fertilizer and detergent runoff".
Step-by-step explanation:
- Dead Zones, particularly throughout the Gulf of Mexico, become generally caused through phosphates and nitrates load capacity from farmland.
- Agricultures in the Midwest which underground tunnels waterways as well as down the Mississippi and through the gulf coast whereby individuals choked out an existence.
So that the above would be the right choice.