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Tuesday, January 12, 2010

dirty water

1) Name one way water sources become contaminated (dirty) in 3rd world countries?
 Countries that don't have toilets pee in a hole in the ground and the pee goes to our 
rivers and it gets contaminated.

2) What are the dangers of water contamination?
  
people can die from drinking it if it is not cleaned.

3) Describe (in your own words) an invention that can save people from drinking contaminated water?
  A clay filter. it has this special substance that kills bacteria.

4)  Why do you think everyone in 3rd world countries do not have these inventions?
They cannot a ford them.


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