ENV200H1 Lecture Notes - Lecture 7: Thermosphere, Organism, Ecosystem Services
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Biochemical cycles: involves biological, geological, and chemical interactions, matter cycles through ecosystems, one ecosystem to another, one organism to another, living organism to the abiotic, and back again . (ex. carbon, hydrologic, nitrogen , phosphorus) Possible question in exams about how carbon could have been present from the mountains in the. Ocean: there"s not new water being created. Phosphorus cycle: no atmospheric component, phosphates used in dna and atp (chemical energy, availability strongly influence plant growth, phosphates move through the food chain. Morocco, jordan, south africa, usa and china (this is because of its patchy distribution) Morocco has almost all world phosphate rack reserves. All biochemical cycles cycle through long time periods. The atmosphere: gaseous envelope surrounding the earth, mostly oxygen & nitrogen (99%, layers, troposphere (closes to land, stratosphere, mesosphere, thermosphere. *notice the big changes in temperature from layer to layer. Even a small concentration disruption can make a big impact: other gases 0. 03%
