Only once ventilation has been achieved is the firefighters attempt to enter a structure when backdraft conditions are present.
<h3>What is the meant by ventilation?</h3>
In the workplace, ventilation is used to reduce exposure to airborne contaminants. It is widely employed to purge the air of contaminants like fumes, dust, and vapours in order to produce a secure and healthful working environment.
The alveoli are responsible for converting carbon dioxide from the atmosphere into oxygen.
Thus, Only once ventilation has been achieved is the firefighters attempt to enter a structure.
For more details about ventilation, click here:
brainly.com/question/11471552
#SPJ4
D. The Civil War was a fight between Northern and Southern states due to each side clashing together on certain issues and one issue being slavery in the American society
Saving allows the person to save more money and investing allows the person to acquire more money
