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In 1968–69, natural fibres accounted for over 70 percent of the world's total fibre
production, with cotton remaining the most important. Estimated total annual
world production of natural fibres in this period amounted to about
Coal gas World reserves of natural gaS Underground gaS storage Future world
gas consumption Transportation and storage of liquefied petroleum gaS. heating
value ranging from about 475 to 560 British thermal units per cubic foot (about ...
Incentives to increase exploration and drilling are expected to lead to additional
supplies of natural gas, since large, yet-to-be-discovered deposits are believed to
exist. Ultimate recoverable (with present technology and economics) world ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review