The Encyclopedia Americana, Volume 7Grolier, 1995 - Encyclopedias and dictionaries |
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Page 72
The other reason for the lower temperatures These differences in the annual temperature at high latitudes is that the sun's rays , which range , as with latitudinal temperature variations , fall slantingly on the earth's surface at the ...
The other reason for the lower temperatures These differences in the annual temperature at high latitudes is that the sun's rays , which range , as with latitudinal temperature variations , fall slantingly on the earth's surface at the ...
Page 331
COLORADO DESERT , kol - ə - rad'o , an area of arid lowlands adjacent to the lower Colorado River where that stream leaves the United States and enters Mexico . The mountain and hill ranges that rise above the lowlands are excluded .
COLORADO DESERT , kol - ə - rad'o , an area of arid lowlands adjacent to the lower Colorado River where that stream leaves the United States and enters Mexico . The mountain and hill ranges that rise above the lowlands are excluded .
Page 629
In a large measure the question of the lower limit of minable ore depends on technology and the willingness of society to pay the cost of production . The continuous decline in the lower limits of copper ores is an example .
In a large measure the question of the lower limit of minable ore depends on technology and the willingness of society to pay the cost of production . The continuous decline in the lower limits of copper ores is an example .
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Bibliographic information
| Title | The Encyclopedia Americana, Volume 7 The Encyclopedia Americana, Grolier Incorporated, ISBN 0717201260, 9780717201266 |
| Contributor | Grolier Incorporated |
| Publisher | Grolier, 1995 |
| ISBN | 0717201260, 9780717201266 |
| Export Citation | BiBTeX EndNote RefMan |