Question

What are five biological concepts or processes that are essential to life and are affected by water pollution?. For example, if your topic is eutrophication, you might select photosynthesis as one of your biological concepts or processes to analyze.

Answer 1

Five biological concepts or processes that are essential to life and are affected by water pollution are-

1- Respiration of water animals- animals present in water respire or breathe through the dissolved oxygen that is present in water. Due to water pollution, the availability of dissolved oxygen becomes low and is very harmful for animals.

2- Salinity of water- Due to deposition of chemical, fertilizers, pesticides , the salt concentration of water also changes which make it unsuitable for the biodiversity of water.It is higher than the normal salt concentration that should be present in water.

3- Biochemical oxygen demand(BOD) of water-- Water rich with organic matter is acted by bacteria and this will require oxygen . This demand of oxygen is very high in polluted water. So lower the BOD, less polluted the water is

4- Survival of flora of water.- plants need to survive as well in water and accumulation of harmful chemicals and metals in water destroy their habitats also.

5- Survival of rare species- Due to many water problems, lots of flora and fauna is being extinct due to the increased amount of chemicals present in water.

So these are affected by water pollution.

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