Which non-metal is essential for our life and all living beings inhale it during breathing?
Oxygen
Importance
Name the non-metal which is essential for maintaining life and inhaled during breathing.
Study the following statements about ozone:
(a) It is essential for breathing of living organisms.
(b) It is used to disinfect water.
(c) It absorbs ultraviolet rays.
(d) Its proportion in air is about 3%.
Which of these statements are correct?
(i) (a), (b) and (c)
(ii) (b) and (c)
(iii) (a) and (d)
(iv) All four