Which human activity has the most negative impact on water quality

There are many human activities that pollute water, but I'd say that the industry is one of the worst. Many industries pour their waste, that if often toxic into water sources such as rivers or even the ocean. This waste not only harms wildlife of all sorts (animals, fish,plants, etc.) but also causes illness in humans.

Ethene molecular fórmula= c2h4molecular weight = 29.046g/molhope it : )

D.na is the answer hope this