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Show j .i-ni 01 oai t m m sea waters of the globe, if extracted, would be greater in mass than the land, so far ns it appears above the surface. The seas cover 73 per cent of "the earth's surface, estimated at 0,260,000 (German) square miles. The percentage of chlornatrium in the sea is the same at all depths. Assuming that the average depth of the sea is a half (German) mile, there are then 3,400,000 cubic miles of sea water. A cubic mile of sea water contains on the average about 25 kilograms of Mt. The 8,400,000 cubic miles of sea water would therefore contain con-tain 85,000 cubic iVies of distilled pure ealt. From the German. |