EXERCISES: LESSON 3
INSTRUCTIONS: Answer the following exercises by marking the lettered response that
best answers the exercise, by completing the statement, or by writing the answer in the
space provided at the end of the exercise.
After you have completed all the exercises, turn to "Solutions to Exercises" at the
end of the lesson and check your answers. For each exercise answered incorrectly,
reread the material referenced with the solution.
Which of the following are waterborne diseases?
d. Viral hepatitis.
e. Typhoid fever.
Which of the following are coliform organisms?
a. Shigella dvsenteriae.
b. Escherichia coli.
d. Schistosoma japonicum.
e. Aerobacter aerogenes.