█ _ Joel R Gat 2005 حصريا كتاب ❞ Isotope Hydrology ❝ 2024 Hydrology: نبذه عن الكتاب: “Water, water, every where, — nor any drop to drink” (Samuel Taylor Coleridge, “The Rime of the Ancient Mariner”) aptly sums up overall picture hydrosphere that part planet Earth made water The oceans, covering 71% surface globe, make 97 25% of the mass Most freshwaters, whose volume is estimated to be 39·106 km3, are also not immediately accessible: 29·106 km3 ice accumulated on mountain glaciers and caps poles; 9 5·106 km3 constitute groundwaters only about 0 13·106 waters, mainly lakes rivers The amount held in biosphere is estimated be 6·103 atmospheric moisture amounts just 13·103 less than 10−5 total but this small one which actuates hydrologic cycle by virtue of its dynamic nature Figure 1 shows a schematic fashion components hydrologic system mean annual fluxes between these compartments, i e the evaporation, transport through atmosphere, precipitation over sea and land surfaces, backflow ocean as sub surface runoff Some secondary loops recycling from continents the atmosphere indicated It evident first approximation, the closed However, different reservoirs are not strictly steady state, variety time scales There marked seasonal imbalance caused snow accumulations large land areas in winter; soil such wetlands fill up during rainy periods Biology Books مجاناً PDF اونلاين Biologically Biology natural science concerned with study life, its various forms function, how organisms interact each other surrounding environment word biology Greek two words: bio (βίος) meaning life And loggia ( λογία) means or Biology: similarity vegetation animal cover edges African American states, existence same fossil Branches biology Biology an ancient thousands years old modern began nineteenth century This has multiple branches Among them are: Anatomy Botany Biochemia Biogeography Biofisia Cytology cell science Ecology environmental science Development Embryology embryology Genetics genetics Histology histology Anthropology anthropology Microbiology bacteriology Molecular Biology Physiology functions organs Taxonemia taxonomy Virology virology Zoology zoology