What are Major causes of Water Pollution?

industries.

improper drainage and factory waste are main reasons.go and study geography

industrials toxins

water pollution is a big problem today, yet people don't seem to care about it... like in the movie the day after tomorrow... Oil is just one major cause, but also the garbage humanity throws in the sea. I also know that soap from wash mashines has a negative fertilizing effect ! Let's hope people will change, or we will not have any fishes in a few years !