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- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_2%3A_The_Physical_Environment/2.4%3A_The_AtmosphereOn average, the total weight of the atmospheric mass exerts a pressure at sea level of around 1.0 × 10 5 pascals (Pa; or one atmosphere), which is equivalent to 1.0 kg per cm 2 . The density of the at...On average, the total weight of the atmospheric mass exerts a pressure at sea level of around 1.0 × 10 5 pascals (Pa; or one atmosphere), which is equivalent to 1.0 kg per cm 2 . The density of the atmospheric mass is much greater close to the surface and decreases rapidly with increasing altitude.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/02%3A_The_Physical_Environment/2.04%3A_The_AtmosphereThe atmosphere, the gaseous layer that surrounds the earth, formed over four billion years ago and is held in place by the attractive forces of gravity. This section is a brief introduction to the lay...The atmosphere, the gaseous layer that surrounds the earth, formed over four billion years ago and is held in place by the attractive forces of gravity. This section is a brief introduction to the layers of the atmosphere and the differences between climate and weather.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/20%3A_Biogeochemical_Cycles/20.03%3A__The_Carbon_CycleThe overall effect is that carbon is constantly recycled in the dynamic processes taking place in the atmosphere, at the surface and in the crust of the earth. In 2018, the additional flux of carbon i...The overall effect is that carbon is constantly recycled in the dynamic processes taking place in the atmosphere, at the surface and in the crust of the earth. In 2018, the additional flux of carbon into the atmosphere from anthropogenic sources was estimated to be 36.6 gigatons of carbon (GtC = 1 billion tons of carbon)—a significant disturbance to the natural carbon cycle that had been in balance for several thousand years previously.
