The Use of nitrogen fertilizers near the lake is your answer.
A common way that humans pollute water is through the addition of nutrients (fertilizers and sewage) to water as nonpoint source pollution. These added materials are full of nitrogen and phosphorus, two nutrients that encourage the growth of aquatic producers, such as algae.
Mitosis never stops in most of the cells of our body like "Gastrointestinal tract", "that give rise to blood cells" etc.
But, it stops after the death of the body.
Hope this helps!
Most notably, kidneys remove dangerous toxins and excess water from your blood and eliminate them through your urine. Kidneys also perform other amazing physiological feats, from regulating the amount of fluid in your body to controlling the salt content of that fluid. Here are three more amazing kidney functions.
