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br card 2
cards 2
Question | Answer |
---|---|
refreshes the supply of nutrients in lake | lake turnover |
floats, the volume of displaced water is equal to | portion of the object that is submerged |
stays afloat as long as the buoyant force | equal to weight |
object that is more dense | sink |
Using less | conservation |
obtaining fresh water from salt water | desalination |
amount of one substance in a certain volume of another | concentration. |
pH is a measure of | acidity. |
first step in treating water | filtration |
chlorine being added to drinking water | kills disease-causing microorganisms. |