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...Ecosystem pond dr poonam kumari associate professor dept of zoology maharaja college ara b sc part i hons the complex living organisms their physical environment and all interrelationships in a particular unit space an can be categorized into its abiotic constituents including minerals climate soil water sunlight other nonliving elements biotic consisting members linking these together are two major forces flow energy through cycling nutrients within structure is basically description features amount distribution habitat it also provides information regarding range climatic conditions prevailing area from point view ecosystems consist following basic components ecological relationships manifested physicochemical component includes inorganic compounds such as oxygen calcium carbonates phosphates variety organic by products activities or death factors ingredients moisture wind currents solar radiation radiant sun only significant source for any non carbon phosphorus nitrogen etc that pre...