Assessing and Managing Pediatric Cardiac Rhythm Disturbances. Arrhythmia: Absence or disruption of cardiac electrical activity resulting in abnormality in the heart's normal rhythmic pattern. Bradycardia: A heart rate below the normal limit for age.
Throughout the world, about 900 million trees are cut down annually, as of 2014. That equates to about 2.47 million trees cut down every day. These trees are used to make everything from lumber and paper to deodorant and food additives. Continue Reading.
Most will however lose some of their oldest leaves just before they produce new leaves in the spring. Some will lose part of their leaves in the fall. A tree can absorb as much as 48 pounds of carbon dioxide per year and can sequester 1 ton of carbon dioxide by the time it reaches 40 years old. Tree leaves are composed of many colored pigments -- green chlorophyll hides them during the spring and summer growing seasons.