List 2 marine life adaptations you learned about.

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.

the answer would be   10%

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added