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Groundwater/Surface Water

Across
Cause human illness
The study of living organism
Living matter
Resident
Sediment moved in suspension in water
Sewage, treatment plant & industrial discharge
the science that deals with the earth's physical structure and substance
a substance used for destroying insects
Source that serves 140 million people
Natural & human sources affected
Down
a member of a large group of unicellular microorganisms
the science or practice of farming
the branch of science concerned with the properties of the earth's water
Essential for plant growth
the supply of water to land or crops to help growth
Salt used for deicing and anti-icing of roads
High concentrations of nitrate
Excessive richness of nutrients in a lake
Uncontaminated recharge
a body of permeable rock