A chemical material, as listed on a Material Safety Data Sheet (MSDS) that supplies oxygen required to start or support fire is called a/an __________.
• Understanding how fires start and what they need to keep burning (fire triangle: fuel, heat, oxygen). • How chemical labels and MSDS terminology describe substances that promote combustion. • The difference between chemicals that cause harm to the body vs. those that support burning of other materials.
• Which choice describes a substance whose main role is to supply or enhance oxygen so other things can burn more easily? • Which terms in the choices sound more related to health effects (how they harm people) instead of how they affect a fire? • Think about hazardous materials placards: what kind of substance is marked when it greatly increases the risk or intensity of fire even if it doesn’t burn well by itself?.
• Identify which option is specifically linked to supporting combustion rather than causing poisoning or burns. • Eliminate any choices that refer mainly to toxic effects on humans or long‑chain reaction processes in chemicals. • Recall that MSDS/chemical safety terms distinguish between fire behavior hazards and health hazards—focus on the fire behavior side here.
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