Prepare for the Certificate in Public Health Inspection exam. Utilize our flashcards and multiple-choice questions, each featuring hints and explanations. Ensure your success with our comprehensive resources!

Multiple Choice

Which of the following is NOT a source of phosphorus and nitrogen?

The key idea is nutrient sources that contribute phosphorus and nitrogen to water bodies, which can drive eutrophication. Fertilizers add high levels of these nutrients to soil; rain and runoff carry them into streams and lakes. Detergents have historically contained phosphates, contributing phosphorus to water bodies; even with modern reformulations, detergents can still be a source of phosphorus and nitrogen. Aquaculture feeds produce waste and uneaten feed that release nitrogen and phosphorus into surrounding water. Bottled water, however, is essentially pure water and does not introduce meaningful amounts of phosphorus or nitrogen into the environment, so it is not a source.

The key idea is nutrient sources that contribute phosphorus and nitrogen to water bodies, which can drive eutrophication. Fertilizers add high levels of these nutrients to soil; rain and runoff carry them into streams and lakes. Detergents have historically contained phosphates, contributing phosphorus to water bodies; even with modern reformulations, detergents can still be a source of phosphorus and nitrogen. Aquaculture feeds produce waste and uneaten feed that release nitrogen and phosphorus into surrounding water. Bottled water, however, is essentially pure water and does not introduce meaningful amounts of phosphorus or nitrogen into the environment, so it is not a source.