Yes the answer is B. chlorination
Answer:
Individual organisms don't evolve. Populations evolve.
Explanation:
Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions
Answer:
option (d) is incorrect
Explanation:
the focal lenth in convex mirror [mirror has an outer bulge], is positive, because in this type of mirror image is formed behind the mirror on right side .
according to sign convention, length on the right side it is positive.
