Why there is less bacteria and particle pollution in ground water than in water from surface such as lakes and rivers?
Answers
Answer:
there is less bacteria in ground water than in surface water bodies such as lakes and rivers because the bacteria reproduce should have proper sunlight food water so it can survive and it poduces other offspring
Water in rivers and lakes is being reduced as the requirements of rapid urbanisation, population growth and industrialisation cause more water to be drained out from them. The main causes of river pollution are :
(i) Huge amounts of untreated sewage and industrial effluents are being empried into the rivers and lakes. This has caused the water bodies to become highly polluted
(i) Human ashes (due to cremation near water bodies), dead animals and leaching out of nitrogen compounds from fertilised agricultural lands also increase the pollution
(ii) Nutrient run-off in storm water from sheer flow' over an agricultural field or a forest is also another cause.