The Encyclopedia Americana, Volume 7Grolier, 1985 - 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 with an out- put of 250 million cubic feet per day , and con- suming 15,000 to 20,000 tons of coal per day , would cost about $ 500 million . Six such plants were planned for sites in New Mexico , Wyoming , Montana , and North ...
... plant with an out- put of 250 million cubic feet per day , and con- suming 15,000 to 20,000 tons of coal per day , would cost about $ 500 million . Six such plants were planned for sites in New Mexico , Wyoming , Montana , and North ...
Page 231
... plants widely grown as house and garden plants . Coleus belongs to the mint family ( La- biatae ) and is native to Java and tropical Africa , although many species have become naturalized in the American tropics . Most cultivated ...
... plants widely grown as house and garden plants . Coleus belongs to the mint family ( La- biatae ) and is native to Java and tropical Africa , although many species have become naturalized in the American tropics . Most cultivated ...
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