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Weeks 7-9

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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Question
Answer
benthos   organisms that live on or near the ocean bottom  
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plankton   tiny organisms that are moved by ocean currents  
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nekton   free-swimming ocean organisms that can move independently of currents  
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pH   the measure of how acidic or basic a substance is  
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turbidity   a measure of how clear water is  
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bio-indicators   organisms that are used to assess the health of a water system  
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algal bloom   the rapid growth of algae encouraged by too many nutrients in the water  
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non-point source pollution   pollution that comes from many places  
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remote sensing   the method of gathering information about areas without visiting the area  
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global positioning system (GPS)   using satellites to pinpoint locations on Earth  
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geographic information system (GIS)   mapmaking software that creates map layers containing different information about an area  
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point source pollution   pollution that comes from a single identifiable site  
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