No one should be exposed to secondhand marijuana smoke. Due to the risks it poses to lung health, the American Lung Association strongly cautions the public against smoking marijuana as well as tobacco products. More research is needed into the effects of marijuana on health, especially lung health. Updated March 23, 2015. See our public policy position on marijuana and lung health.
Carbon fixation is a biochemical process by which atmospheric carbon dioxide is incorporated by plants, algae and (cyanobacteria) into energy-rich organic molecules such as glucose, thus creating their own food by photosynthesis.arbon dioxide exists in the Earth's atmosphere as a trace gas at a concentration of about 0.04 percent (400 ppm) by volume.
Re: Why is carbon dioxide classified as an inorganic compound? Â« Reply #1 on: 23/02/2004 17:39:24 Â» Carbon dioxide is is in kind of a grey area and really seems like it COULD be considered organic, but isn't. On one hand, it contains carbon and is a common product in some organic reactions. (combustion, respiration) On the other hand, organic molecules are expected to be classified into certain categories based on functional groups and any molecule in one those categories is expected to react in a similar way to others like it.