There are many causes of water pollution. The main one is plastic. The reason is that plastics take four hundred and fifty years to decompose in water. Many companies also use plastic and people throw it into waterways. Because water can float and be carried by the wind, it can harm unsuspecting creatures hundreds of feet from where it was initially dumped. These wastes include bags, bottles, cups, straws, cup lids, utensils, six bag holders, cling film, fishing waste. line, bait bags and floats. The second cause of water pollution is waste from ships. The ships took a lot of waste with them and dumped it. This was very common until the government took action. They fined sailors up to a million dollars for disposing of waste. Thanks to this, ships now carry less waste. Animals aren't the only ones harmed by wasted water. Fishing lines, ropes and plastic nets are caught in the rutter and motor, but the vessels aren't quite perfect. The other main cause of water pollution...