Addition of charcoal to the filter bed of sand during water treatment for township supply is to?
A
prevent goiter
B
prevent tooth decay
C
remove odour
D
kill germs
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Activated Carbon filters are excellent at removing chlorine and related poor taste and odor.
Source: WAEC / JAMB / NECO Classroom Archive (Record #64922)