PTA Salary Outlook. Physical therapist assistants are paid well. According to the Bureau of Labor Statistics (BLS), the median salary earned by PTAs in 2012 was $52,160, where the highest paid PTA earned $72,720 and the lowest paid earned about $32,420.
Carbon dioxide is a by-product of respiration ] and combustion combustion: Combustion is the process of burning by fire. . Green plants remove carbon dioxide from the atmosphere by photosynthesis. Living organisms-including all plants and animals-release energy from their food using respiration.Respiration and combustion-burning-both release carbon dioxide into the atmosphere. These processes form a carbon cycle in which the proportion of carbon dioxide in the atmosphere remains about the same.The animation should help you to understand how the cycle works.iving organisms-including all plants and animals-release energy from their food using respiration. Respiration and combustion-burning-both release carbon dioxide into the atmosphere. These processes form a carbon cycle in which the proportion of carbon dioxide in the atmosphere remains about the same.
Combustion, or burning, of fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity, releases extra carbon dioxide (CO2).CO2 is a greenhouse gas that is causing global warming, and this extra amount is too much for the carbon cycle to deal with.hotosynthesis is the process in which carbon dioxide is converted to glucose, so carbon is stored.   Respiration is the process in which carbohydrates are converted to wa â¦ ter and carbon dioxide, so that carbon is released again into the air.