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.
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The discovery of oil increased the population of Texas as people swarmed not as much as the Gold Rush but similar to try to get rich from the oil.
Answer: B: "The information age"
Explanation: "The information age" began in the 20th Century, let us say started around the 1970s. The information age is also called the 'digital age', or 'computer age' which adopts the use of digital computers and digital record keeping processes.
It is a shift from the industrial revolution and is based upon access to 'information technology' where people can easily access 'information' and 'knowledge', thereby making information and knowledge easily disseminated and available.
B. a degree in law is the best choice
