Which statement best describes the effect of increasing oxygen concentration on flammability risk?

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Multiple Choice

Which statement best describes the effect of increasing oxygen concentration on flammability risk?

Explanation:
Increasing oxygen concentration provides more oxidizer for the combustion reaction. With more oxygen available, fuels ignite more easily, flames burn more vigorously, and flame speeds can rise. This makes it easier for a fire to start and spread, so the overall flammability risk goes up as oxygen concentration increases.

Increasing oxygen concentration provides more oxidizer for the combustion reaction. With more oxygen available, fuels ignite more easily, flames burn more vigorously, and flame speeds can rise. This makes it easier for a fire to start and spread, so the overall flammability risk goes up as oxygen concentration increases.

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