The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 40
Natural- resource " wants " Excessive resource demands and waste Sustained yield Conflicting govern- mental roles Primitive hunting and agri- cultural abuses. could be rendered palatable or more palatable by being heated . The primary ...
Natural- resource " wants " Excessive resource demands and waste Sustained yield Conflicting govern- mental roles Primitive hunting and agri- cultural abuses. could be rendered palatable or more palatable by being heated . The primary ...
Page 52
... natural communities are important to the con- tinued operation of those systems that man has created . Watershed forests are protected so as to maintain stream- flow and to avoid siltation of reservoirs ; estuaries are pro- tected so as ...
... natural communities are important to the con- tinued operation of those systems that man has created . Watershed forests are protected so as to maintain stream- flow and to avoid siltation of reservoirs ; estuaries are pro- tected so as ...
Page 1111
... Natural and. classification and name Natural biological colorants B - carotene Colour Index references chemical structure H , C CH1H CH , C = CC = CC = CH , H H H H H C.I. Natural Yellow 26 , C.I. 75130 CH , CH2 CH CH , H , C CH , CH , N ...
... Natural and. classification and name Natural biological colorants B - carotene Colour Index references chemical structure H , C CH1H CH , C = CC = CC = CH , H H H H H C.I. Natural Yellow 26 , C.I. 75130 CH , CH2 CH CH , H , C CH , CH , N ...
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19th century Africa American animals areas became bee-eaters cells centimetres central centre century Church collagen conifers connective tissue conodonts conservation conservatism constitution continental continental drift copper Coraciiformes coral cosmic rays countries court covenant Cretaceous Crete cricket crime criminal Cro-Magnon crocodiles Crusade cultural deposits disease early Earth economic effect energy England Europe federal forest fossil France French function genera geosynclines groups hoopoes hornbills illus important industrial Iráklion island King known land later Le Corbusier legislation major ment metres minerals modern natural North Nyssaceae occur ocean Ordovician organized original Parliament particles party percent period plants political pollution population problems protection reefs region result River rock Roman Saladin sediments social South Soviet species structure theory tion town trade traditional trees tropical trouvères Union United usually western