Question

Polluted water

Hint:

Remember to connect the type of pollutant to its main effect: {Biological} pollutants (sewage) cause infectious diseases. {Chemical} pollutants (industrial waste) cause toxicity and long-term health problems.

Answer 1

Polluted water is water that has been contaminated with harmful substances, rendering it unsafe for human use (like drinking) and harmful to the ecosystem.
Types of Pollutants:
Biological: Pathogens like bacteria and viruses from untreated sewage.
Chemical: Industrial waste, pesticides, heavy metals.
Physical: Solid waste like plastics, sediment, and excess heat (thermal pollution).

Consequences: Consuming polluted water can lead to serious water-borne diseases like cholera, typhoid, and dysentery. It destroys aquatic ecosystems and can contaminate the food chain.