• # question_answer Which of the following metals is a water pollutant and causes sterility in human being? A) As B) $Mn$      C) $Mg$ D) $Hg$

Prolonged exposure to $Mn$can cause sterility in humans. The effect of manganese occurs, mainly in the respiratory tract and in brain. It can also cause Parkinson's disease, lung embolism and bronchitis.