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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Answer:
Plants begin to freeze and go into hibernation. The increase in temperature and decrease in daylight allow plants to hibernate. There is a decrease in temperature and daylight and plants produce less food.
Explanation:
Answer:
For trading purposes
Explanation:
To conduct trade with Mali, someone from Catalonia would create a map about the region. West Africa was the large producers of gold in the Middle Ages. The Mali Empire was rich in gold and other precious items. From there it began the supply of gold in Europe. Catalans interest in trade and the gold in Africa led someone to create a map about Mali.
Light fireworks, hug/love family members
Answer:
True
Explanation:
Much of the catastrophic damage done by hurricane katrina was caused by a storm surge arriving near high tide
