Defy the odds from Raha International School, UAE

Team Adira from The Rajkumar College, Rajkot, India

As we all are aware of the fact that sewers constitute a large amount of waste materials, germs, and toxic chemicals which can cause health problems such as hepatitis, cholera, and typhoid in the place where sewage is dumped. It can also contaminate water sources that are used for drinking, bathing etc.