A way in which science has improved a societal problem.

A. contaminated water being purified
B. pathogens becoming resistant to antibiotics
C. bacteria contaminating food
D. unknown diseases appearing in some areas

Respuesta :

A way in which science has improved a societal problem is
Contaminated water being purified
because science has invented many new techniques to purify water by chlorination or some other methods
so correct option is A 
hope it helps

Answer:

contaminated water being purified

Explanation:

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