question number 20.
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(a)it is found in lower portion of the stratosphere from 20to30km.
(b) destruction of ozone layer is ozone hole and it is caused because of chlorofluorocarbons
(c)it effect to skin cancer and eye damage
(b) destruction of ozone layer is ozone hole and it is caused because of chlorofluorocarbons
(c)it effect to skin cancer and eye damage
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