The ozone molecules absorb ultraviolet rays between ______nm wavelength.
Ozone absorbs low energy ultraviolet radiation and decomposes back to oxygen.
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?