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
Answer:
While Mars' atmosphere is mostly CO2, a greenhouse gas, there isn't enough atmosphere to create an effective insulating layer to hold in the trapped IR radiation.
Explanation:
The remaining gases are a mixture of nitrogen, argon, oxygen and carbon monoxide. CO2 is a potent greenhouse gas, so Mars does have a greenhouse effect. But it's very weak because the Martian atmosphere is so thin -- 100 times less dense than the Earth's atmosphere.
I believe the answer is: Maintenance role
In an organization, people who held the maintenance role would played a crucial role in maintaining a certain level of performance/productivity among other members. This could be done by doing things such as, providing emotional support, relieving working tension, giving counseling for troubled members, etc.
