56 - What are the compartments of the global ecosystem Earth is an open system with respect to energy Energy from the sun and from radioactive

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What are the compartments of the global ecosystem? Earth is an open system with respect to energy. Energy from the sun, and from radioactive decay, drives the movement of materials around the planet. Moon: creates tides, keeps earth on axis, makes seasons, oceans cover 65% of earth surface, fresh waters, atmosphere, and land . Upwelling zones occur where offshore winds push water away from shore. Cold bottom-water that moves up is nutrient-rich and supports a high photosynthesis (algae, diatom) rate. Most fisheries are in upwelling zones. Lakes, ground water, and rivers have fresh water Surface waters of lakes become depleted in nutrients, bottom-water becomes depleted in oxygen. Turnover , or mixing, reverses this process. Atmosphere: 78% N2, 21% O2, 1% argon, and 0.038% CO2. Ozone in the stratosphere absorbs UV radiation. He broke it down into two layers: Troposphere and Stratoshpere. Ozone circulates horizontally while the air in the trophosphere is generally circularly circulated. Diffusion does occur between both T and S. Some heat radiated back to space is trapped by water, carbon dioxide and CH4. How does energy flow through the global ecosystem? Solar energy absorbed by primary producers (or converters)
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This note was uploaded on 04/24/2008 for the course BIOLOGY 020.152 taught by Professor Pearlman during the Spring '08 term at Johns Hopkins.

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56 - What are the compartments of the global ecosystem Earth is an open system with respect to energy Energy from the sun and from radioactive

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