There are many reasons for water pollution of local rivers; mainly:
Local heating of river water (usually due to industrial cooing or energy production) is thermal pollution.
The fish have disappeared from the local river due to pollution, habitat destruction, overfishing, and changes in water quality.
what are some other water pollution causes
people dumping rubbish and things that can be recycled in the source of water or even straight into the river
The causes of water pollution in the Satluj river could include industrial discharge, agricultural runoff containing pesticides and fertilizers, untreated sewage and wastewater discharge from urban areas, and deforestation leading to sedimentation and erosion.
factory,oil,fuel
A threat the Rhine faces is pollution. There are many different causes of pollution. One is acid rain. This is where gases from nearby factories meet with rain turning the rain into acid rain, which then falls into the river Rhine, polluting its water.
It causes pollution.
Pollution.
Water pollution that goes with water down a storm drain that goes straight to a river or stream.
we can make people aware of harms of water pollution.
OilChemical wasteFactory wasteAgricultural fertiliser runoffGarbageSewageNearly anything that could be described as being "dumped" in water bodies causes water pollution.