Multiple Choice QuestionDuring primary treatment, wastewater Blank______.Multiple choice question.flows through a trickling filter bed or aeration tank to break down organic compoundsis passed through a large metal grating to remove solids from the waste streamis discharged into a lagoon or wetland to remove inorganic nutrients

Multiple Choice QuestionA Blank______ system first takes wastewater to a tank where grease and oils rise to the top, and solids settle to the bottom where bacteria decompose them.Multiple choice question.septicprimary treatment"night soil"sewage

An effluent sewerage system uses Blank______.Multiple choice question.trickling filter beds, or aeration tanks, to biologically decompose organic compoundsindividual septic systems at each dwelling, but then pumps effluent into a central treatment plantartificial wetlands to dispose of wastesNeed help? Review these concept resources.

Multiple Choice QuestionThe Clean Water Act was passed in 1972 in response to people and companies dumping Blank______ directly into surface waters.Multiple choice question.garbagetoxic chemicals and sewagenuclear waste

Multiple Choice QuestionPower plants and runoff are primary sources of Blank______ pollution, which is heated water entering a water body.Multiple choice question.organicacidthermalmetal

The largest single use of freshwater withdrawal in the world is for Blank______.Multiple choice question.drinking watermining productionrecreation (i.e., water parks, pools)irrigation