Answer :
Final answer:
Nonpoint source runoff is the main cause of pollutants in Ohio's water bodies, originating from diffuse sources like agriculture and urban areas. It is harder to control than point sources and is a significant contributor to water pollution in the U.S.
Explanation:
Nonpoint source runoff is the primary source of pollutants in Ohio's lakes and rivers. These pollutants come from diffuse and widespread sources such as agricultural fields, cities, and abandoned mines, carrying contaminants like herbicides, pesticides, and fertilizer into surface water bodies and groundwater.
Unlike point sources that have identifiable locations, nonpoint sources are harder to control due to their multiple sources and greater volume of water, making them the leading cause of water pollution in the U.S.
Contaminants from nonpoint sources can be swept into waterways via rainfall, snowmelt, or wind, coming from various activities like vehicle oil drips, pesticide use, animal wastes, and soil disturbance.
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