ARE FINS LIMBS?? GOOD ANSWER OR ELSE I WILL REPORT YOU.

Fins are limbs.

Explanation:

A limb is considered an appendage of any body. Since a fin is an appendage of an animal body, it is indeed a limb.

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.