What are the primary components of fire gases?

The primary components of fire gases primarily include water vapor (H2O), carbon dioxide (CO2), nitrogen (N), carbon monoxide (CO), and various other gases that can be produced depending on the materials burning. When a fire occurs, the combustion process generates these gases as byproducts.

Water vapor is released as fuel combusts, especially in the presence of moisture. Carbon dioxide is a primary product of complete combustion, while carbon monoxide is produced during incomplete combustion, often in environments with insufficient oxygen. Nitrogen is typically present in the atmosphere and can also be included in the gas mix.

This option comprehensively covers the main gaseous products that result from the combustion process, making it the most accurate choice among the options provided. The presence of other gases may vary, but the primary gases listed are consistently produced in most fire scenarios.