At higher doses, can cause hallucinations, feelings of strength, seizure, and coma.

The answer is Phencyclidine or PCP. It was was developed in the 1950s as a general anesthetic for surgery. It’s no longer used now due to serious side effects. It could be any white powder, crystal, capsules, tablets, or liquid. Taking great dosages of PCP can result to seizures, coma, and death. But death more often came from accidental injury or suicide during PCP intoxication.

ketamine , dextromethorphan  & PCP - D. All of the above

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.