This is a ringing that sets in after excessive noise exposure, such as in a rock concert (being too near the speakers) or the explosion of a firecracker. This excessive noise can cause injury to the ear, causing the ringing. The tinnitus will usually clear up on its own, and will last anywhere from minutes to hours.
Mechanical digestion is the actual physical break down of food into smaller pieces. One example of this is mastication (chewing) which occurs in the mouth by the teeth, which act to cut and grind food into smaller pieces. This makes them easier to later digest as it increases the SA of the food molecules.
Mechanical digestion is the physical breakdown of food and is done primarily in the mouth and in the stoma â¦ ch. Chemical digestion is the actual absorption of the nutrients coming from food into the body. This is done primarily in the small intestine.es a body be at the state of rest as well as at state of motion at same time. A passenger moving in a bus is in state of motion with respect to an observer standing outside a â¦ t road and he is in state of motion with respect to anther passenger traveling in the same bus. 7 people found this useful.