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.
Coal is mostly carbon. During complete combustion, carbon is oxidised to carbon dioxide: carbon + oxygen â carbon dioxide. Carbon dioxide is a greenhouse gas greenhouse gases: the gases responsible for the global warming-carbon dioxide, methane, nitrous oxide and CFCs.Increasing concentrations of it in the atmosphere contribute to global warming. Hydrocarbon fuels contain carbon and hydrogen.oal is mostly carbon. During complete combustion, carbon is oxidised to carbon dioxide: carbon + oxygen â carbon dioxide. Carbon dioxide is a greenhouse gas greenhouse gases: the gases responsible for the global warming-carbon dioxide, methane, nitrous oxide and CFCs.