The process by which oxygen and carbon dioxide are exchanged between the body and its environment through the movement of air in and out of the lungs is: A Respiration B inspiration C Expiration D Perspiration

The correct answer is (A) Respiration.<br /><br />Respiration is the process by which oxygen and carbon dioxide are exchanged between the body and its environment. It involves the movement of air in and out of the lungs, allowing for the intake of oxygen and the expulsion of carbon dioxide. Inspiration (B) refers specifically to the inhalation phase, while expiration (C) refers to the exhalation phase. Perspiration (D) is unrelated to this process, as it refers to the release of sweat from the sweat glands.