a) Name one way water sources become contaminated (dirty) in 3rd world countries? with out sanitition hygiene, water sources can become contaminated, like go under ground through dirt and pipes!



b) What are the dangers of water contamination? 2.5 billion people do not have a toilet or latrine, so feces can easily reach the drinking water and you can DIE!



c) Describe (in your own words) an invention that can save people from drinking contaminated water? you can probaly send water to some factory and then can fertilize water and make it cleaner than what it is or probaly buy toilets for other people.



d) Why do you think everyone in 3rd world countries do not have these inventions? no, i think some other people have money and don't share and they have these inventions!