20CH1005_Water pollution, causes & effects.pptx

About water pollution

1. Water pollution causes and effects R. Amrithaa 20ch1005 Evs assingnment

2. What is water pollution: Water pollution is the  contamination of water bodies  (like oceans, seas, lakes, rivers, aquifers, and groundwater) usually caused due to human activities. Water pollution is any change, minor or major in the physical, chemical or biological properties of water that eventually leads to a detrimental consequence of any  living organism . Drinking water, called Potable Water, is considered safe enough for human and animal consumption.

3. SourCes of water Insecticides and pesticides POLLUTION Detergents and  Fertilizers Industrial effluents Domestic Waste

4. Effects of Pollution of Water Diseases:  In humans, drinking or consuming polluted water in any way has many disastrous effects on our health. It causes typhoid, cholera, hepatitis and various other disease s. Eradication of Ecosystem:   Ecosystem  is extremely dynamic and responds to even small changes in the environment. Increasing water pollution can cause an entire ecosystem to collapse if left unchecked.

5. Eutrophication:  Chemicals accumulation and infusion in a water body, encourages the growth of algae. The  algae  form a layer on top of the pond or lake. Bacteria feed on this algae and this event decreases the amount of oxygen in t he water body, severely affecting the aquatic life there Effects of the food chain:  Turmoil in food chain happens when the  aquatic animals  (fish, prawns, seahorse, etc) consume the toxins and pollutants in the water,  and then the humans consume them

6. Conclusion Water is an important source of life and if it gets polluted it will challenge the existence of life on this planet. It is already known that only 1% of the water available on Earth is suitable for drinking and if the water pollution rate keeps increasing then the day is not far when water scarcity will challenge our existence. The prediction that the Third World War will be fought for water may also be true. Therefore we must save each & every drop of water and make it available for our future generation.

7. THANK YOU