Answer: I think the answer is based on your opinion.
Explanation: It's asking what YOU think. I don't think there's a right or wrong answer.
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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Answer:
Scaffolding.
Explanation:
Scaffolding is a process used by teachers as a tool to assist their students. In this process, the teachers first assist their students when they learn, the teachers back out, and assist when they need help.
In the given case, Francesca's teacher is using the scaffolding technique. The teacher helps her student solve the algebra problems. She backed up when they begin to solve the problems.
Therefore, scaffolding is the correct answer.
The most important purpose of the pyramids is it acts as a burial ground for pharaohs. Egyptians believed that the pyramids helped the pharaohs in their passageway to the afterlife.
