Just like dimples in the face, some people are born with back dimples no matter their body fat percentage. Remember! Despite of all the sweating diet control and hard work, if you don't have it in your genes, the probability of you NOT getting back dimples are high as they are genetic makeup. This disappointing but it is a fact.
When the volume is increased while the mass remains, the density increases. One way to increase volume is by reducing the temperature of objects especially gases. This is how â¦ air conditioning and fridges work, cooling the air which will move down as denser objects sink.
Thus, if you increase the volume of a container, the pressure will decrease, and if you decrease the. volume of a container, the pressure will increase. Page 4. Quiet Inspiration: Muscle Contraction. â¢ The volume of the thoracic cavity is changed by muscle contraction and relaxation. â¢ During quiet inspiration, the diaphragm and the external intercostal muscles contract, slightly enlarging the thoracic cavity.