... in the ozone, or eliminate it one hundred percent in certain areas, if a super nova only depleted it twenty percent. Some scientist stress this point to argue how holes in the ozone never really exist. They claim instead that the ozone only thins from its peak from time to time(Howard). Even this claim sounds like a natural ... At eleven year intervals, ozone in the upper atmosphere increase by five percent which suggest the influence of the sunspot cycle. (Ponte-30) Where scientist claim "holes" occupy, natural factors account for entirely. Factors such as temperature, air currents, an...

• Word Count: 4635
• Approx Pages: 19
• Grade Level: High School

... dioxide (in the blood). The walls or air sacs in the lungs are very fragile. The damage to the air sacs is irreversible. Eventually Emphysema will make permanent holes in the tissues of the lower lungs. It is a degenerative disease that usually develops after many years of assault on lung tissue (5). The small airways (bronchioles) that join ... confirmed objective measure of airflow limitation, preferably spirometry, may also be used (7). Spirometry is a procedure that measures respiratory gases and resulting pulmonary function that aids in the diagnosis of emphysema (2). For spirometr...

• Word Count: 3702
• Approx Pages: 15
• Has Bibliography
• Grade Level: High School