Chewing is also know as Mastication. Therefore, D is your answer. Hope I was able to help!
The reason why George, who is 60, gain weight despite the fact that he <span>was eating the same amount of food that he had each day since he was 20 and he exercised regularly is h</span>is metabolism. George's metabolism slowed down by a third between emerging and late adulthood. The metabolism is the rate at which the body burns calories. Slower metabolism means that the body burns the calories slower which lead to weight gain.
The correct definition to warranty is A. A company's written agreement to repair a product or refund the money should the product not function properly
