Question

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Answer 1

1. Smoking destroys the tiny air sacs, or alveoli, in the lungs that allow oxygen exchange. When you smoke, you are damaging some of those air sacs. Alveoli don’t grow back, so when you destroy them, you have permanently destroyed part of your lungs. When enough alveoli are destroyed, the disease emphysema develops.
2. Artificial respiration, breathing induced by some manipulative technique when natural respiration has ceased or is faltering. Such techniques, if applied quickly and properly, can prevent some deaths from drowning, choking, strangulation, suffocation, carbon monoxide poisoning, and electric shock.
3. Yeast is essential to the production of risen bread, but it has other uses as well. In addition to giving off carbon dioxide, to create bubbles that expand and help raise the dough, yeast also breaks down the complex carbohydrates in flour. This is important because these compounds are essentially tasteless.
4. Unbeknown to most people, too much oxygen can be toxic. After several days of breathing nothing but pure oxygen, you'd begin to experience nausea, dizziness, muscle twitches, and convulsions. You might even die. Ironically, too much oxygen actually inhibits ventilation and ends up slowing down the delivery of oxygen to your body's tissues.
5. Sea divers carry oxygen cylinders as they can not breath the dissolved oxygen.Mountaineers carry oxygen cylinders because when they travel at a high altitude,the amount of of oxygen reduces which results in difficulties in breathing

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