The Encyclopedia Americana, Volume 7Grolier, 1995 - Encyclopedias and dictionaries |
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Page 134
... PLANT DEBRIS WATER SEDIMENTS PEAT WATER SEDIMENTARY ROCKS COAL plants ) were in part retained in the plant debris . Along with the wind- and water - borne impuri- ties , they remained to become the ash that is left when coal burns . In ...
... PLANT DEBRIS WATER SEDIMENTS PEAT WATER SEDIMENTARY ROCKS COAL plants ) were in part retained in the plant debris . Along with the wind- and water - borne impuri- ties , they remained to become the ash that is left when coal burns . In ...
Page 143
... plant for studying the Hygas process was put in operation in Chicago , Ill . This plant could produce 1.5 million cubic feet ( 42,000 cu meters ) of SNG per day from 75 tons of coal per day . In 1973 , it became the first plant in the ...
... plant for studying the Hygas process was put in operation in Chicago , Ill . This plant could produce 1.5 million cubic feet ( 42,000 cu meters ) of SNG per day from 75 tons of coal per day . In 1973 , it became the first plant in the ...
Page 799
... plant the kernels if the plant is to reproduce itself continually . THE PLANT Corn is a coarse , annual plant of the grass family ( Gramineae ) that probably originated in tropical South America . It is the largest of the cereals ...
... plant the kernels if the plant is to reproduce itself continually . THE PLANT Corn is a coarse , annual plant of the grass family ( Gramineae ) that probably originated in tropical South America . It is the largest of the cereals ...
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