The area of cropland per person Is only a fraction of what it was in the now advanced countries at a comparable stage in their development. Second. Population growth rates confronting todays lessdeveloped countries are far higher than those existing in the developed countries at a comparable point in their development. or at any other time in their history. Third. Significant opportunity for Immigration as a means of alleviating population pressure does not exist for todays overpopulated. less developed countries. Fourth. Because of higher rates of population growth and limited possibilities for expanding the area of land under cultivation. the area of cropland per person is shrinking much more rapidly than It ever has in the now advanced countries.
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Immigration