The Encyclopedia Americana, Volume 7Grolier, 1988 - Encyclopedias and dictionaries |
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Page 80
... effect on the climates . In gen- eral , the ice ages caused lower temperatures around the world , and they produced more pre- cipitation in the tropics as storm tracks shifted closer to the equator . Causes of the Ice Ages . It seems ...
... effect on the climates . In gen- eral , the ice ages caused lower temperatures around the world , and they produced more pre- cipitation in the tropics as storm tracks shifted closer to the equator . Causes of the Ice Ages . It seems ...
Page 160
... effects of euphoria . The effects are not , however , accompanied by visual or auditory hallucinations . Archaeologi- cal findings indicate that coca leaf chewing was prevalent among the Incas as early as 500 B.C. , and the ...
... effects of euphoria . The effects are not , however , accompanied by visual or auditory hallucinations . Archaeologi- cal findings indicate that coca leaf chewing was prevalent among the Incas as early as 500 B.C. , and the ...
Page 315
... effect of adjacent areas of color upon each other , either in space ( simultaneous con- trast ) or time ( successive color contrast ) . Usu- ally the color differences between objects are accentuated when they are juxtaposed ...
... effect of adjacent areas of color upon each other , either in space ( simultaneous con- trast ) or time ( successive color contrast ) . Usu- ally the color differences between objects are accentuated when they are juxtaposed ...
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