Update app.py

app.py

@@ -115,13 +115,12 @@ welcome_message = """
 
 topics = """
 ### Feel Free to ask me anything from the topics below!
-- Chess piece movements
-- Special moves
-- Game phases
-- Common strategies
-- Chess terminology
-- Famous games
-- Chess tactics
+- Plastic pollution
+- Oil spills
+- Marine life 
+- Impacts in humans
+- Waste management
+- Beach cleanups
 """
 
 # Setup the Gradio Blocks interface with custom layout components