| http://www.w3.org/ns/prov#value | - (I) When viewed from the biological standpoint, it is desirable that such conditions as permitting the cycle of the food chain in the widest possible range continue in a limited water area and, at the same time, adapting coexistence of bacteria, protozoans, multicellular small animals, arthropods, mollusks, and vertebrates such as small fishes, as well as cleaning of treated water on a higher leve
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