The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 42
... oceans . ( Some classifications group the Arctic with the Atlantic , and others distinguish a Southern or Antarctic Ocean . ) The areal order of magni- tude of the average ocean is 10,000,000 square kilo- metres ( 13,861,000 square ...
... oceans . ( Some classifications group the Arctic with the Atlantic , and others distinguish a Southern or Antarctic Ocean . ) The areal order of magni- tude of the average ocean is 10,000,000 square kilo- metres ( 13,861,000 square ...
Page 47
... ocean until the " Challenger Expedition " of the last cen- tury brought back a series of wire soundings that showed there were depths in the ocean at least as great as the Himalayas are high . Only with modern echo sounding techniques ...
... ocean until the " Challenger Expedition " of the last cen- tury brought back a series of wire soundings that showed there were depths in the ocean at least as great as the Himalayas are high . Only with modern echo sounding techniques ...
Page 710
... ocean waters or between the ocean waters and sedimentary materials whereby the concentrations of the individual elements remain essen- tially constant . How far back in geological time this steady state has persisted remains something ...
... ocean waters or between the ocean waters and sedimentary materials whereby the concentrations of the individual elements remain essen- tially constant . How far back in geological time this steady state has persisted remains something ...
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activity Africa agriculture America became become body called capital caused central centre century changes Christian Church continued core countries cultural demand direction early Earth East Eastern eclipse economic effect established Europe example feet field Figure flow force groups growth important income increase industry internal investment Italy kilometres known labour Lake land later less living magnetic major mantle material means measurements ment metres miles mountains move movement nature North observed occur ocean organization origin Orthodox patriarch percent period planning Pleistocene political population position possible present problems production region relatively remained result rise River rocks social society South species structure surface theory tion trade traditional United West Western