EARTH SCIENCE
GROUNDWATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it often involves very large volumes of water coming from a single source.
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“nonpoint” means that there is no point in trying to control it.
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it is caused by small amounts of pollution from many places.
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it contains high levels of pathogens.
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Detailed explanation-1: -Nonpoint source pollution is difficult to control because it comes from many different sources and locations. Most nonpoint source pollution occurs as a result of runoff. When rain or melted snow moves over and through the ground, the water absorbs and assimilates any pollutants it comes into contact with.
Detailed explanation-2: -Nonpoint source pollution comes from oil, pet waste, pesticide, herbicide, fertilizer, road salt, bacteria, sediment, and any other contaminant that ends up on the ground naturally or from human activity.
Detailed explanation-3: -Point-source pollution is easy to identify. As the name suggests, it comes from a single place. Nonpoint-source pollution is harder to identify and harder to address. It is pollution that comes from many places, all at once.
Detailed explanation-4: -Point sources originate in large and easy to trace facilities, hence are easier to control. In contrast, pollution from “nonpoint” sources is cumulative, arising from multiple inputs over larger areas, such as farms, city streets, and residential neighbourhoods.
Detailed explanation-5: -Dispose of Oil and Household Chemicals Properly. Maintain Septic Tanks. Find Other Ways to Water Livestock. Reduce Sediment Run-off from Fields. Reduce Nutrient Run-off from Fields. Create and Enhance Riparian Corridors. Pick Up Pet Waste. Take Care of Big Issues on Small Farms. More items