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.
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They hoped to gain support to prohibit colonists encroaching into their territory in the Mohawk Valley.
Answer:
Independent variable
Explanation:
The independent variable is those variables that can be manipulated by an experimenter. It is opposite to the dependent variable. The effect can be seen through the manipulation in the independent variable on the dependent variable.
So that here in the above context if you want to find out that using cells during driving cause accident. The cell phone will be here as an independent variable. Because when cell phone manipulated it will show the effect of the accident. It depends on the cause and effect relationship.
Answer:
The gupta Golden Age had extensive inventions and discoveries that contributed to Hindu culture. The Islamic golden age made significant new contributions to mathematics, astronomy, philosophy, medicine and geography.
Explanation:
Spindler realized that the iceman was very old by the wear of his teeth.
