Answer:
Step-by-step explanation:
A glowing splint exposed to pure oxygen will burst into flames
because the process of combustion will be greatly accelerated. The
glowing splint exists in a normal atmosphere comprised of
approximately 20% oxygen. Think of the effect of fanning over
glowing embers in order to restart a fire. You are 'pushing' more
oxygen over the embers. Exposing a glowing splint to 100% oxygen
has an even greater effect.