Wednesday, November 5, 2008















SEPTIC TANK- Is a tank where the human waste is stored and is decomposed and purified with anaerobic bacteria.
















unprossed Water- Unprocessed water is not very clean because it hasn't gont through the process of purifing the water.





















water pressure- water pressure is like the strenth of the water pushing.an example of water pressure is when you go to the deep end of a swimming pool you can sometimes feel the pressure in your ears ane head.









Ground water- is located beneath the ground and is stored the aquifier.












Reservior- Its a natural man made place were water is stored.





















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