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Evaluating water

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
pH   It is a mesures how acidic or basic water is.  
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Tubidity   It is a mesure of how clear water is.  
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Algal bloom   It is a rapid growing algal that enconuraged by too many nutrients in the water also cause high tubidity.  
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Nitrates   They are nitrogen compounds used for growth by plants and algae.  
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Bio-indicators   They are organisms or part of orgainsms that are used to assess ecosystem health.  
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