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:
The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then expanded over the next 13.8 billion years to the universe that we know today.
Explanation:
Our universe began with an explosion of space itself - the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies.basically it states that our universe came into existence to an explosion.
<h3>What does a county treasurer do?:</h3>
County treasurers, most often elected officials, are typically responsible for sending tax bills, receiving the funds and collecting overdue payments. Once received, the treasurer will disburse that money among the various agencies that need it. This includes property taxes as well as gambling and excise taxes.
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<u>Brainliest?</u>
Answer:
poor colonists moved inland to find good farmland.
Explanation:
It is in Mecca, Saudi Arabia
