Biology 2483A Lecture Notes - Lecture 24: Calcium Carbonate, Sulfuric Acid, Microorganism
8 Dec 2017
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Document Summary
25. 1 elements move among geologic, atmospheric, oceanic, and biological pools at a global scale. 25. 3 anthropogenic emissions of sulfur and nitrogen cause acid deposition, alter soil chemistry, and affect the health of ecosystems. 25. 4 losses of ozone in the stratosphere and increases in ozone in the troposphere each pose risks to organisms. Movements of biologically important elements are linked at a global scale that transcends ecological boundaries. Ecological processes at the ecosystem scale (e. g. , net primary production, decomposition) influence global phenomena (e. g. , greenhouse gas emissions and uptake) Humans are increasingly changing the physical and chemical environment on a global scale. Chemical level is scary part, things are changing. Atmospheric emissions of pollutants, dust, and greenhouse gases have caused widespread environmental problems. A major focus of global ecology is the study of the environmental effects of human activities. Concept 25. 1 elements move among geologic, atmospheric, oceanic, and biological pools at a global scale.
