which is an example of a way in which science has improved a societal problem?\ncontaminated water being…

which is an example of a way in which science has improved a societal problem?\ncontaminated water being purified\npathogens becoming resistant to antibiotics\nbacteria contaminating food\nunknown diseases appearing in some areas
Answer
Brief Explanations:
Purifying contaminated water is a positive scientific - based solution to a societal problem of lack of clean water. Pathogens becoming resistant to antibiotics, bacteria contaminating food, and unknown diseases appearing are problems rather than solutions.
Answer:
contaminated water being purified