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Phosphorous, one of the most abundant elements on Earth, is a key ingredient in fertilizers that farmers use to grow crops, including corn, wheat, and rice.
A high concentration of phosphorus which washes off of farm fields during rainstorms routinely pollutes lakes and streams worldwide. Ohio is battling algae, which spawns in high phosphorus waters leading to closed lakes, reservoirs, and beaches. Algae were so thick that the state warned people not to touch the water, take boats out, or eat any fish caught there.
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