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Humic compounds also play a unique role in the fertility of coastal waters by strongly influencing the primary productivity of nearshore areas. The oceans of the world are complex ecosystems, exhibiting a high degree of temporal and spatial variability in most chemical, physical, and biological par
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for illumination. Consequently particles smaller than about a few hundred nm in diameter are submicroscopic. Colloid systems in which a liquid is the dispersing medium appear to form true solutions. These solutions pass unchanged through ordinary filter paper. The classical science of colloids deal
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chemistry, soil science, and oceanography. So that specialists interested in certain sections may find their subjects comprehensively covered, a few topics are dealt with in more than one chapter so that readers may ignore sections not especially of interest to them. However the chapters more fully treating978-3-642-67043-5978-3-642-67041-1
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chemistry, soil science, and oceanography. So that specialists interested in certain sections may find their subjects comprehensively covered, a few topics are dealt with in more than one chapter so that readers may ignore sections not especially of interest to them. However the chapters more fully treating978-3-642-67043-5978-3-642-67041-1
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发表于 2025-3-24 08:12:21
forms that are products of the erosional sculpturing of the landscape, as well as those that result from accumulation, such as glacial moraines and desert sand dunes. The science of geomor phology is gradually beginning to evolve from a passive cataloging of scenery and its deduced causes (in the Davisian se978-1-4684-7522-7978-1-4684-7520-3
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r of factors, including the amount of light received, temperature, the supply of major nutrients (such as nitrogen, phosphorus, and silicon), and the availability of essential trace metals, such as iron, cobalt, copper, manganese, molybdenum, zinc, etc.
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