Final answer:
NAFTA and other international forces have impacted Mexican farming through the degradation of land, displacement of farmers, and increased immigration.
Step-by-step explanation:
The North American Free Trade Agreement (NAFTA) and other international forces have impacted Mexican farming in several ways. Firstly, the influx of cheap American corn due to NAFTA has affected the ability of Mexican farmers to compete, leading to the degradation of Mexican agricultural land. Secondly, the rise of Mexican factories called maquiladoras as a result of NAFTA has displaced Mexican farmers and workers. Finally, the globalization and corporate trade facilitated by NAFTA have increased immigration across the US-Mexican border, bringing in millions of illegal workers into the United States.