The Encyclopedia Americana, Volume 7Grolier, 1995 - Encyclopedias and dictionaries |
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Page 73
Causes of Climates 73 ATMOSPHERE the 24 - hour variability of the sun's angular altiNORTH POLE tude . Another cause is the difference in cloudiness at low and high latitudes . Tropical clouds are usually scattered or broken .
Causes of Climates 73 ATMOSPHERE the 24 - hour variability of the sun's angular altiNORTH POLE tude . Another cause is the difference in cloudiness at low and high latitudes . Tropical clouds are usually scattered or broken .
Page 81
Other causes probably played their roles in the periods and smaller stages of the great ice ages . ... Variations in atmospheric circulation that would cause cooler summers and heavier snowfall in winter would also favor glaciation .
Other causes probably played their roles in the periods and smaller stages of the great ice ages . ... Variations in atmospheric circulation that would cause cooler summers and heavier snowfall in winter would also favor glaciation .
Page 512
The forces that cause concrete to deteriorate include freezing and thawing of water - saturated concrete , expansion caused by the reaction between reactive aggregates and alkalis in cement , reactions between soil and water sulfates ...
The forces that cause concrete to deteriorate include freezing and thawing of water - saturated concrete , expansion caused by the reaction between reactive aggregates and alkalis in cement , reactions between soil and water sulfates ...
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