Environmental

Carbon monoxide (CO) in a home is dangerous because it is:

AA corrosive gas that damages building materials
BAn odorless, colorless gas that can cause illness and death by displacing oxygen in the bloodstream✓ Correct
CA flammable gas that causes explosions
DA gas that only affects people with respiratory conditions

Explanation

Carbon monoxide is a colorless, odorless, and highly toxic gas produced by incomplete combustion. It binds to hemoglobin more strongly than oxygen, causing oxygen deprivation and potentially fatal poisoning.

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