Science Crossword
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
                           
 
 
Down: 1) pollution from a known source.4) the process of removing salt from ocean water.7) myself8) is a structure that holds back and controls the flow of water.9) small wastewater system.11) mine Across: 2) the process of supplying water to land and crops.3) amount of a subtance in another.5) is a section or waterway, closed off by gates, in which the water level is raised or lowered to move ships.6) yours10) is a system that collectes and treats wastewater from a city or town.12) is the science and business of raising and havesting fish.13) pollution that is hard to find or scatterd.14) is a long period of abnormally low rain fall,15) you
 

 

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