Environmental Homework 2 part 3

Environmental Homework 2 part 3 - atmosphere doesnt play a...

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Environmental Science Homework #2: Part 3 Three biogeochemical cycles are the Phosphorus, Nitrogen, and the rock cycles. The nitrogen cycle is the process by which nitrogen is converted to its different compositions. The nitrogen cycle can be performed under biological and non-biological processes. The four major processes of the nitrogen cycle include: fixation, mineralization, nitrification, and denitrification. The atmosphere is made up of 78% of nitrogen, although none of it is available for biological use. Nitrogen has a big impact on the rate of ecosystem processes such as primary production and decomposition. Some of the available forms of nitrogen in the environment include, nitrate, nitrogen gas (N2), ammonium and organic nitrogen. With the help of microbes, (which produce energy and gather nitrogen for growth) nitrogen is converted from one composition to another. The phosphorus cycle is describes the movement of phosphorus through the lithosphere, biosphere, and hydrosphere. Unlike most of the other biogeochemical cycles, the
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Unformatted text preview: atmosphere doesnt play a vital role because phosphorus is typically a solid and found and observed at Earth level. The phosphorus is on the slowest cycles despite moving through plants and animals, because it moves through the ocean and soil very slowly. At first, phosphate is weathered from rocks and in soil clay surfaces and organic matter absorb it. Herbivores then eat plants and obtain phosphorus and then carnivores eat the herbivores and they receive the phosphorus. The phosphorus is then transformed into scat or poop from the animals. The oxygen cycle is the transfer of oxygen to the atmosphere, ocean, and lithosphere. Photosynthesis is the main driving force behind the oxygen cycle because it produces and releases oxygen into the atmosphere. When an organism dies, its shell is deposited on the seafloor and eventually is made into a limestone rock (lithosphere). Weathering processes can release this oxygen form the rocks into the atmosphere....
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