. La División Internacional del Trabajo estableció un intercambio desigual entre los países lo que puede ser entendido como una de las posibles causas del subdesarrollo de los países latinoamericanos.

Migration people get up and go cause they feel it is best for them 

Mexico has a host of environmental problems, including significant chemicalpollution  from factory discharges and waste dumping, but the main threat to itsbiodiversity  probably stems from  deforestation  and other natural habitat losses. forest habitat is lost for a number of reasons

Ibelieve the answer is c. map projections.hope my answer has you : )

There is no map, maybe give the link, it may be b