Ions are atoms of the same element with different numbers of

ions are atoms of the same element with different numbers of electrons

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.

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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