Unit 8 · Environmental Biology
The natural and enhanced greenhouse effect, global warming and its effects and responses, the depletion of the stratospheric ozone layer by CFCs, and the causes and effects of acid rain.
Deshapriya Senevirathne. B.Sc. (Hons) Biology Special, University of Peradeniya — graduated with a class pass. All the content and lessons in A/L Biology on Paadama are reviewed by Deshapriya Senevirathne, and the lessons are taught by him.