Exchange of carbon dioxide between lungs and blood is by diffusion. Explain This Statement??

Explanation:

It is simple diffussion because it is the movement of gases or molecules of substance from a region of higher concentration to a region of lower concentration without using energy. Through this process gases are exchange between the alveoli of lungs and blood of the circulatory system. Carbon diffuses from tissues to lungs and oxygen diffuses from lungs to Tissues.

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.