Breathing begins with inhalation when the contraction of the diaphragm flattens on contraction, pulling the lungs down. The contraction of these muscles increases the volume of the lungs. This reduces the air pressure in the lung to below that of the external air. This pressure difference forces air to move into the lungs where gas exchange occurs. The relaxation of the diaphragm and intercostals reduces the volume of the lungs, which then increases the air pressure inside the lung to that above the external air. This forces air out of the lungs. The cycle goes on and on. Hope this helped!
Answer:
Reading Subject contents is intended to learn / acquire new information.
Reading fiction is intended for entertainment.
When designing strategies to learn, you need higher level of focus and adjust it to your learning capabilities. You will need to put more effort to understand the content of the book.
This will be a lot of different compared to designing strategies to consume entertainment. You can do it however you feel comfortable. The stakes is significantly low compared to reading to acquire knowledge.
Answer:
B. common cold and influenza
The best answer is a) a general frustration: if everything is going wrong then you can't even find solace in other aspects of life, unlike in D. when if the family life is going well, then the person might at least find some relief there.
