Question

(f) What precaution should we take to avoid onset of water borne disease?
(i) Always use mineral water available in market.
(ii) Drink water which is boiled and cooled.
(iii) We should keep the sewage pipelines near water supply pipes.
(iv) Always cover mouth while sneezing and coughing.​

Answer 1

Answer:

is it 4th

Explanation:

is it

ya fir mele ko pats hai

Answer 2

Answer:

Always cover mouth while sneezing & coughing. (4 option)