Vocab Quiz Crossword
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
                               
 
 
Down: 2) A very small stream3) A general term for organisms that drift in water5) gradual increase of phosphorus and other chemicals in an aquatic system6) A common freshwater perch8) any of numerous groups of chlorophyll-containing, mainly aquatic eukaryotic organisms ranging from microscopic single-celled forms to multicellular forms9) Water purification is a process of removing undesirable chemicals, materials, and biological contaminants from raw water10) Tiny pieces of dead organic material that is food for organisms at the base of an aquatic food web12) A well drilled through impermeable strata to reach water capable of rising to the surface by internal hydrostatic press14) Rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm, typically to forests and lakes.16) waste material that pollutes air, water or soil17) Amount of salt in a given body of water Across: 1) Zone under the earth, which is saturated by water4) The cycle of processes by which water circulates between the earth's oceans, atmosphere, and land7) a measure of the condition of water11) Section. or zone of the ocean where light does not reach13) the conversion of wasteland into land suitable for use of habitation or cultivation.15) Tiny pieces of dead organic material that is food for organisms at the base of an aquatic food web18) Any beneficial reduction in water loss19) A general term for organisms that drift in water20) The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.
 

 

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