Chemistry Black foot disease is caused by the pollution of groundwater as a consequence of increased seepage of:__________? Options:A. NitratesB. FluoridesC. ArsenicD. MercuryView AnswerC. Arsenic Continue Reading Previous: __________ is one of the allotropic modifications of carbon.Next: Water Gas is a mixture of two gases Hydrogen & Carbon monoxide, while separating Hydrogen gas by liquification process which one is liquefied first__?