1. Oxygen particle diffuses in and carbon dioxide diffuses out to allow you to breath.
2. Tea diffuses out throw the tea bag and into the water to make tea.
3. Perfume gas particles diffuse around the room evenly to allow you to smell the scent.
4. Heat from a radiator diffuses out and around the room
2. Tea diffuses out throw the tea bag and into the water to make tea.
3. Perfume gas particles diffuse around the room evenly to allow you to smell the scent.
4. Heat from a radiator diffuses out and around the room