Home » General Knowledge MCQS » The ozone layer is at height of________kilometers from the surface of the Earth?The ozone layer is at height of________kilometers from the surface of the Earth? by A. 10 to 20 B. 20 to 30 C. 30 to 40 D. 40 to 50 Related Posts:Ozone depletion occurs commonly due to_______________?The first layer of cell wall which is formed is___________?
