Study thefollowing statements about ozone:
(a) It isessential for breathing of living organisms.
(b) It isused to disinfect water.
(c) Itabsorbs ultraviolet rays.
(d) Itsproportion in air is about 3%.
Which ofthese statements are correct?
(i) (a),(b) and (c)
(ii) (b)and (c)
(iii) (a)and (d)
(iv) Allfour

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Solution

(ii) (b)and (c)

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Similar questions

Study the following statements about ozone:

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(b) It is used to disinfect water.

(d) Its proportion in air is about 3%.

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