A fire requires oxygen to burn.
Oxygen-enriched air is a fire hazard because the burning rate of combustible materials is increased.
The more oxygen that is present, the greater the burn rate.
How do you increase the burn rate?
Options:
[a] an electric stove
[b] exercise
[c] burn wet materials
[d] friction
[e] add more oxygen
[f] decrease amount of fuel
[g] a hydraulic system
[h] decrease the oxygen