Question

River have always been used to dump waste. how is it that pollution of rivers is becoming more alarming now than it was earlier.

Answer 1

rivers and seas have traditinally been used for the disposal of waste such as sewage and I did trial waste. If the amount of waste dumped is not very high, the natural process of decay ensures that water pollutions remains within manageable levels. However, with an increasing human population and an increasing number of industries, the amount of waste which goes into the water is very high.

Answer 2

Answer:

Rivers have always been used to dump waste. In older times, the amount of waste disposed was not enormous. Natural processes were sufficient to degrade all the dumped waste to harmless material and manage the pollution level.