Read the following passage:
Passenger aircraft are equipped with emergency oxygen systems that deploy masks automatically during a sudden loss of cabin pressure. Instead of relying on bulky, high-pressure gas cylinders that add significant weight to the airframe, these systems utilize compact chemical oxygen generators. When a passenger pulls down on the mask, a firing pin initiates an exothermic reaction between sodium chlorate and iron powder, rapidly generating breathable oxygen for roughly fifteen minutes. This window provides the flight crew with adequate time to descend to an altitude where passengers can breathe normally without supplemental systems.
Statement: The author wrote this passage primarily to explain how chemical oxygen generators operate to provide emergency life support on aircraft.
Answer: Answer