The answer is D, I just took the test... Good luck!!
When exposed to smoke, hydrogen cyanide may play a role in rendering firemen and bystanders incapable of performing self-rescue.
HCN is a toxin that spreads throughout the body; it is hazardous because it inhibits cytochrome oxidase, which stops cells from using oxygen. Loss of awareness, respiratory arrest, and finally death arise from inhibition of the last stage of electron transport in brain cells.
Higher HCN exposures cause cardiovascular collapse, tremors, cardiac arrhythmia (which may not manifest for two to three weeks after the fire exposure), coma, respiratory depression, and respiratory arrest. Inhaling minute concentrations of hydrogen cyanide can result in headaches, weakness, nausea, and vomiting. Larger doses might result in fainting, convulsions, gasping, fast pulse, irregular heartbeat, and even death. In general, the severity of the symptoms increases with the seriousness of the exposure.
Learn more about hydrogen cyanide:
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The guy above me is right. D is correct
Answer:
I anticipate the economy will improve over the next five years. The coronavirus pandemic has hurt small businesses and people have lost money. But hopefully there will not be a return of the virus on a large scale and the economy will improve. The economy was very good before the pandemic. I believe it will be good again.
Explanation:
Change it up some to use your own words, but you get an idea.
Answer:
See Below
Explanation:
Could you please give more detail
