You can elaborate on the following points:
- Define combustion
- Types of combustion
- Pollution
- Types of pollution
- Air pollution
- Causes
- Combustion sources
- Effects due to those pollutants and the products formed
- Ways and means to check pollution
- Plant trees
- Use unleaded petrol, CNG or even biofuel
- Don't burn wastes
- Use public transport
ā - Catalytic converters n automobiles
- Use low VOC products
- Recycle