Ozone layer is an absolute must in the atmosphere. Due to the presence of Ozone ultraviolet rays and infra red rays from the sun cannot reach earth directly. What is not correct in relation to Ozone present in the atmosphere ?

• A. Ozone lies in the stratosphere of the four layers of the atmosphere.
• B. Stratosphere lies at a height of 20kms to 50kms from the earths surface.
• C. Ozone is depleted by the sulphur dioxide gas emitted by the aeroplanes moving through the stratosphere.
• D. The ultravilet rays cause skin cancer in human being and also affect fish and vegetables.