QUESTION ONE [15 MARKS] AH (a) The for dissociation of molecular oxygen to atomic 0-20 AH = +498.4 kj/mol (1) Calculate the longest wavelength, in nanometers, that can dissociate Marks] 0 oxygen is (c) Discuss ozone depletion and formation of ozone holes in the Antarctica regions. (d) Explain the health and environmental effects of UV-B radiation. (e) Describe the greenhouse effect. [2 (ii) What region of the electromagnetic radiation does the wavelength fall? [ Mark] (b) Describe, with the aid of relevant equations, catalytic processes for ozone destruction in the stratosphere. [4 Marks] [5 Marks] [2 marks] [1 Marks]