Answer :
You are work-ing in the lab with your group and you no-tice the sweater on the mann-equin next to you catches on fire. The appro-priate course of action is to push the manne-quin on the ground and roll it back and forth to sup-press the flames.
To stop a fire you need to remove oxygen. Fires need oxygen to sur-vive as much as we do : remo-ving a fire's exposure to oxy-gen will cause the fire to slowly die. Fire blank-ets and carbon dioxide fire exting-uishers are two effect-ive methods of suffocating a fire and restrict-ing its acc-ess to oxygen.
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