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- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/20%3A_Biogeochemical_Cycles/20.01%3A_Biogeochemical_CyclesSome other examples of reservoirs or pools for water you will encounter in the course include glaciers; the soil layer; the aggregate of bodies of fresh water on the continents (rivers and lakes). If ...Some other examples of reservoirs or pools for water you will encounter in the course include glaciers; the soil layer; the aggregate of bodies of fresh water on the continents (rivers and lakes). If the flux of material into and out of a given reservoir is the same for some period of time, that reservoir is said to be in a steady state.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/20%3A_Biogeochemical_Cycles/20.07%3A_The_Sulfur_CycleAtmospheric sulfur is found in the form of sulfur dioxide (SO 2 ), which enters the atmosphere in three ways: first, from the decomposition of organic molecules; second, from volcanic activity and geo...Atmospheric sulfur is found in the form of sulfur dioxide (SO 2 ), which enters the atmosphere in three ways: first, from the decomposition of organic molecules; second, from volcanic activity and geothermal vents; and, third, from the burning of fossil fuels by humans. As rain falls through the atmosphere, sulfur dioxide (SO 2 ) in the atmosphere is dissolved in the form of weak sulfuric acid (H 2 SO 4 ), creating acid rain.
- 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/Workbench/General_Ecology_Ecology/Chapter_20%3A_Biogeochemical_Cycles/20.1%3A_Introduction_to_Biogeochemical_CyclesThe recycling of inorganic matter between living organisms and their environment is called a biogeochemical cycle. It is important to remember that while matter and energy are processed in cycles, th...The recycling of inorganic matter between living organisms and their environment is called a biogeochemical cycle. It is important to remember that while matter and energy are processed in cycles, they are not necessarily moving in a simple circle and do not really have a beginning or an end. Today, anthropogenic activities are altering all major ecosystems and the biogeochemical cycles they drive.
- 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.
