Unit 8 · Environmental Biology
The Ramsar definition of wetlands and the three groups of Sri Lankan wetlands, then rivers, tanks, marshes, swamp forests, villu, lagoons, mangroves, salt marshes, seagrass beds, coral reefs, sea shore and sand dunes.
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.