Here, oxygen travels from the tiny air sacs in the lungs, through the walls of the capillaries, into the blood. At the same time, carbon dioxide, a waste product of metabolism, passes from the blood into the air sacs. Carbon dioxide leaves the body when you exhale.he lungs provide a surface for gas exchange in mammals. Inside the lungs are the alveoli, in which oxygen dissolves into the blood. Is is basically a gas exchange.
Current Local Time: San Martin, California is in the Pacific Time Zone: The Current Time in San Martin, California is: Monday 1/15/2018 9:35 PM PST San Martin, California is in the Pacific Time Zone
During December the temperatures in St. Martin typically vary between a daily high of about 83.0 degrees and a daily low of approximately 76.0 degrees. During the early morning hours of an average December day in St. Martin, you can expect the temperature will be in the vicinity of 78.4 degrees.inter in St. Martin and Sint Maarten offers up weather that other places can only dream of in December.