a)  Name one way water sources become contaminated in 3rd world countries? Answer] the toilet  crap water goes under the ground and travels to the river and then thats how the people get sick because they go to the river and get the water to drink.

b) What are the dangers of water contamination? 

] Getting sick for 3 days  and dyeing from diarrhea. drinking bad pollution is bad. you wouldn't want to get like little kids and die because of that..             

c Describe (in your own words) an invention that can save people from drinking contaminated water? Answer]  well

 is this one thing i liked t   he most it is a straw that can make the dirty water be clean. i think that that is a great invention.. this picX right here is the straw theY made  

 

d)  Why do you think everyone in 3rd world countries do have these inventions? answer]] i don't know maybe because the people that did make the inventions are really smart and the people in the countries cant think well enough to make great stuff like that:)