An effective means used early in the 19th century to clear water of the majority of bacteria was the use of
A. chlorine.
B. iodine.
C. alcohol.
D. sand filters
D. sand filters
Biology & Microbiology
You might also like to view...
The letter "A" in the above figure represents
which teeth? a. incisors b. molars c. canines d. premolars e. none of these
Biology & Microbiology
Which elements are most often the limiting nutrients for plant growth?
A) nitrogen, potassium, phosphorus B) nitrogen, oxygen, hydrogen C) carbon, sodium, chlorine D) carbon, nitrogen, oxygen
Biology & Microbiology
The technique shown in Image B is most likely the:
a) Auramine-rhodamine b) PAS c) Kinyoun d) Thioflavin T
Biology & Microbiology
Which of the following transport mechanisms requires energy?
Biology & Microbiology