Mercury is an element that can be found everywhere in our world. Mercury contamination in the water will be released from industrial waste into the river, causing contamination of mercury in many rivers.
Mercury is an element that can be found in our world. The mercury contamination in waste water that is discharged from factories into the River, causing contamination of the mercury in the river lot.
Mercury is an element that can be found in the World of our common mercury contamination in wastewater will be released from the factory down the river to the contamination of mercury in the river.