The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 280
... natural vegetation of the earth can be conveniently zoned on a combined physical and environmental basis into grassland , woodland , tundra , and desert . Each region contains distinctive plants , animals , climate , and soil . The ...
... natural vegetation of the earth can be conveniently zoned on a combined physical and environmental basis into grassland , woodland , tundra , and desert . Each region contains distinctive plants , animals , climate , and soil . The ...
Page 286
... natural grass- land , this does not necessarily mean that the grassland environment will deteriorate through the replacement of natural by introduced animals . The philosophy of range management that has developed in North America is ...
... natural grass- land , this does not necessarily mean that the grassland environment will deteriorate through the replacement of natural by introduced animals . The philosophy of range management that has developed in North America is ...
Page 721
... natural or mechanical . Natural ventilation results from thermal effects , such as those from a flue , or may be caused by wind , or both . The forces are small and often variable . Their effective- ness is aided by opening or closing ...
... natural or mechanical . Natural ventilation results from thermal effects , such as those from a flue , or may be caused by wind , or both . The forces are small and often variable . Their effective- ness is aided by opening or closing ...
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animals appear authority became become called central central Europe century changes church cities common complete contain continued cultural early East economic effect elected empire English especially established Europe Federal figures force France French German glacier glass gold golf grammar Greece Greek important increased industry influence interest Italy king known Lake land language later leading less living major mass material means measure ment Michigan natural occur Open origin Party percent period Persian played Pleistocene political population position present princes produced Proto-Indo-European range regions remained Republic result River rock Roman social sources structure success surface territorial tion trade traditional United West western