Organophosphates and chlorinated hydrocarbons have both been used as insecticides. Which of the following statements about these two types of compounds is true?
A) Chlorinated hydrocarbons break down faster in the environment than organophosphates do.
B) Organophosphates break down faster in the environment than chlorinated hydrocarbons do.
C) Chlorinated hydrocarbons and organophosphates both break down very quickly in the environment and at about the same rate.
D) Chlorinated hydrocarbons and organophosphates both break down very slowly in the environment and at about the same rate.
Question 2
Aeration of drinking water
A) removes odors.
B) increases dissolved air.
C) improves flavor.
D) does all of the above.
