Coal and Nuclear Fuels 
....
Coal beds are no longer sought, for most of them have been located and only need to be explored further to determine their rank, ash content, continuity ....
(3249
13
)
Natural Gas & Cleaner Automobiles
....
Coal beds also contain appreciable quantities of methane, the principal component of natural gas. Natural gas is produced on all continents except Antarctica. ....
(2375
10
)
Bedrock and Landscapes Different landscapes are associate
.... accumulated a second division of basalt lavas and playa red
beds and other .... Hosting economic accumulations of
coal, natural gas, and precious metals, the Bowen ....
(2469
10
)
Managing Munipipal Solid Waste
.... energy content of solid waste, which is approximately half of that latent in
coal. .... waste is by injection in deep, isolated limestone or sandstone
beds 1,000 to ....
(3902
16
)
Educational Policy of Allied Occupation of Japan
.... The Japanese recreated their shipbuilding and
coal-mining industries, and developed their .... except give tender care to his flower
beds in the Imperial garden ....
(9993
40
)
