Filter Water Vs Tap Water

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Basis-For my science experiment I will be using live clams to filter water and I will use tap water. I was inspired by a previous science fair project where someone tested filters against a clams. In my project, however, I will test if clams filter out vitamins, and then use that water, and tap water, to see which is more healthy to the plant life. If possible, this discovery will help farming by bringing out the nutrients in waste.in the end I will see of my tap water is more effective than the clam filtered water. I want to see if the clam filters out vitamins essential to plant growth. this experiment could go both ways if the clams extract and leave out the essential vitamins and only cleanse up the dirt for growing plants more sufficiently,

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