Formulated in 1823, the Monroe Doctrine asserted that the Americas were no longer open to European colonization.
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Insect pests are among the leading causes of crop failure.
Someanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.
Withtheacquisitionofsmallercompaniesbylargerones,the1960'ssawawaveofnewconglomerates.
Formulatedin1823,theMonroeDoctrineassertedthattheAmericaswerenolongeropentoEuropeancolonization.
Urban renewal programs strive to upgrade areas that are becoming slums.