Answer:
Hi
Explanation:
Cigarette smoke can contain high levels of carbon monoxide. Hydrogen cyanide was used to kill people in the gas chambers. It can be found in cigarette smoke. Nicotine is a poison used in pesticides and is the addictive element in cigarettes. Inhaling the harmful smoke it can inflame your lungs and airway, causing them to swell and block oxygen. This can lead to acute respiratory distress syndrome and respiratory failure. Smoke inhalation commonly happens when you get trapped in a contained area, such as a kitchen or home, near a fire.
Answer:
D. provitamin.
Explanation:
A provitamin is a substance that the body can transform into an active vitamin through metabolic processes. If compared with vitamins, provitamins have no biological activity or are much lower. In other words, provitamins are vitamin precursors.
Although not very frequent, sometimes you can see the term previtamin used as a synonym.
For example, beta-carotene, the most abundant carotenoid in nature, has about one sixth of the biological activity of retinol, or vitamin A, but can be transformed into retinol in the liver by an enzymatic reaction.
Answer:
False
Explanation:
If you were to ever do this, electrical waves can power through and bust out and damage human skin that's in any contact with it. There's a reason that the protection rubber around the internal wires is there.