• # question_answer 25)   Which of the following statements is wrong? (a) Ozone is not responsible for greenhouse effect. (b) Ozone can oxidise sulphur dioxide present in the atmosphere to sulphur trioxide. (c) Ozone hole is thinning of ozone layer present in the stratosphere. (d) Ozone is produced in upper stratosphere by the action of UV rays on oxygen.

(a)${{O}_{3}}$ is responsible for greenhouse effect. Its contribution is about 8%. Rest of the statements are correct.