which of the following is the most serious effect of water pollution for humans?\na. infectious diseases\nb…

which of the following is the most serious effect of water pollution for humans?\na. infectious diseases\nb. algal blooms\nc. toxic food chain effects\nd. low - oxygen water\nplease select the best answer from the choices provided\na\nb\nc\nd
Answer
Answer:
A. infectious diseases
Brief Explanations:
Water - borne infectious diseases like cholera, typhoid can directly harm human health and cause death, making them a very serious impact of water pollution on humans. Algal blooms mainly affect aquatic ecosystems, toxic food - chain effects have a long - term impact but not as immediate as infectious diseases for human health, and low - oxygen water mainly affects aquatic life.