1. In water cycle, ______ brings H2O from water in a lake to vapor at atmosphere. A. evaporation; B. evapotranspiration; C. precipitation; D. infiltration 2. A drinking water well in NJ is seriously polluted due to saltwater intrusion. The major pollutant is _____. A. Oxygen demanding materials; B.salts; C. nutrients; D. toxic heavy metals 3. The real reason to cause saltwater intrusion is the different of _____ between freshwater and seawater. A. density; B. temperature; C. velocity; D. all of the above 4. Which of the following represents a non-point pollution source? A. Leaking underground gas tanks; B. CSO; C. urban runoff; D. an outlet of untreated industrial wastewater into a river
Please choose the correct answer:
1. In water cycle, ______ brings H2O from water in a lake to vapor at atmosphere.
A. evaporation; B. evapotranspiration; C. precipitation; D. infiltration
2. A drinking water well in NJ is seriously polluted due to saltwater intrusion. The major pollutant is _____.
A. Oxygen demanding materials; B.salts; C. nutrients; D. toxic heavy metals
3. The real reason to cause saltwater intrusion is the different of _____ between freshwater and seawater.
A. density; B. temperature; C. velocity; D. all of the above
4. Which of the following represents a non-point pollution source?
A. Leaking underground gas tanks; B. CSO;
C. urban runoff; D. an outlet of untreated industrial wastewater into a river
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