Some city water treatment facilities combine storm water and sanitary sewage systems.
During heavy storms, these treatment facilities may be overwhelmed with water, and untreated storm water mixes with sewage and flows directly back into the streams and rivers, where treated water usually returns. What might be the best way to address this problem? A) Not collecting rainwater in storm sewers and let it just accumulate on the roads
B) Collecting and treating storm sewer and sanitary sewage systems separately
C) Draining the sewage system onto a field near the stream or river
D) Using the excess sewer water as a source of water for the city
Question 2
Heavy metals can quickly move through ecosystems because they
A) are soluble in water as ions and as a few other compounds.
B) quickly dissolve in the fats of animals.
C) quickly become incorporated into sugars and starch.
D) easily clump together and bind tightly to soil compounds.
Water movement between capillaries and interstitial fluid.
Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro
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