In the sewage treatment process, the purpose of chlorination involves ____.
A. adding essential nutrients to drinking water
B. removing discoloration and killing bacteria
C. the reaction of chlorine with organic materials to form chlorinated hydrocarbons
D. preserving pipes in the sewage facility
E. helping large particles settle
Answer: B
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Geography is a theoretical science with few practical applications to real world problems and issues
Indicate whether this statement is true or false.
What kind of waves occur at the boundary between two fluid media?
A) Seiche waves B) Orbital waves C) Transitional waves D) Tidal waves
Examine the map of the plate boundaries and answer this question.
A major transform plate boundary is present at ________.
A. A B. B C. C D. D E. E
You are generally safe inside an automobile during a lighting storm because ____
A) the car's radio antenna will act as a lightning rod B) the rubber tires insulate you from the ground C) metal cars do not become electrically charged D) the metal car body will carry the lightning current around the passengers inside