What type of research method would best answer the question “How many rivers in Florida have nitrate pollution in them?”

field study

Explanation:

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

100 dollars because yeah