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Water pollution is a critical environmental issue stemming from various sources, including bacteria, untreated sewage, and chemical runoff. Major causes include human activities that contribute to pollutants entering oceans, lakes, rivers, and groundwater, leading to severe health risks. Effective management strategies such as water treatment facilities and bioremediation can mitigate these effects by cleaning water and utilizing organisms to neutralize harmful substances. Joint efforts by nations are essential to keep our water safe for drinking and overall health.
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Water Pollution 7SCIENCE
What are some types of water pollution? • Bacteria and viruses • Untreated sewage and garbage • Radioactive waste • Chemicals like pesticides, fertilizers, herbicides • Oil from cars • Soaps
What are some causes of water pollution? • Humans and other organisms produce much of this pollution that can end up being dumped into: Oceans, lakes, rivers and groundwater • Ex: Dumping chemicals and garbage into water • These pollutants can cause birth defects and health problems such as cancer and liver damage in humans and animals
How can we manage this water pollution? • Water treatment facilities • Water is treated (cleaned) and returned for human use • The large pollutants are filtered through many different processes • Reducing water pollution by working together: • Countries must try and keep water (for drinking and other uses) clean and safe!
How can we removethis pollution? • Bioremediation Bio = liferemediation = fixing a problem • This process uses living organisms to make a substance that is harmful ordangerous into one that is harmless or safe • Bacteria break down the harmful wastes • Can be used for many resources: soil and many types of water • How can we reduce water pollution?