Which substance is a serious pollutant which,if ingested or inhaled by humans,accumulates in their bones because it cannot be excreted?
A) calcium
B) nitrate
C) phosphate
D) lead

Question

Which substance is a serious pollutant which,if ingested or inhaled by humans,accumulates in their bones because it cannot be excreted? 
A) calcium 
B) nitrate 
C) phosphate 
D) lead

Quizplus · Accepted Answer

Lead is a serious pollutant that can accumulate in bones and cannot be easily excreted by humans. This can lead to serious health problems like neurological damage, anemia, and even death. Calcium, nitrate, and phosphate are not pollutants that have the same negative impact on human health as lead.

Which Substance Is a Serious Pollutant Which,if Ingested or Inhaled