- Placing a blanket on fire cuts off the oxygen
- A fire requires oxygen to burn
- So, placing a blanket on fire cuts off the oxygen required for fire to burn

- Placing a blanket on fire cuts off the oxygen required for fire to burn
- If something is required for a process then keeping that something from reaching that process can stop that process
- Hence, placing a blanket on fire will stop the fire from burning

Hence, placing a blanket on fire will stop the fire from burning
[Question]Why can a small fire be put out by placing a heavy blanket over it?
[Context]- Placing a blanket on fire cuts off the oxygen 
- A fire requires oxygen to burn 
- If something is required for a process then keeping that something from reaching that process can stop that process