a)  Name one way water sources become contaminated (dirty) in 3rd world countries?

Answer: The people in the 3 countries don't have a toilet and they dig a whole in the dirt and use it as a toilet.

b) What are the dangers of water contamination?

Answer: Who ever drinks the dirty water will die of severe diarrhea.

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

Answer: An aqua duct, life straw and, a clay filter.

d) Why do you think everyone in 3rd world countries do not have these inventions?

Answer: Because the don't have the money to buy the inventions.