Water Pollutants — Prelims Questions

Which of the following statements about Biochemical Oxygen Demand (BOD) is incorrect?

Which of the following pollutants is most likely to undergo biomagnification in an aquatic food chain?

Which of the following diseases is NOT typically caused by waterborne pathogens?

Excessive discharge of nitrates and phosphates into a lake primarily leads to:

Minamata disease is caused by the consumption of fish contaminated with:

A river downstream from a sugar factory shows a significantly reduced fish population and very low dissolved oxygen levels. Which type of pollutant is most likely responsible for this observation?