What happen when Europe not able to self-sufficient in food?

Population growth from the late eighteenth century had increased the demand for food grains in Britain. As urban centres expanded and industry grew, the demand for agricultural products went up, pushing up food grain prices. Under pressure from landed groups, the government also restricted the import of corn. The laws allowing the government to do this were commonly known as the ‘Corn Laws’. Unhappy with high food prices, industrialists and urban dwellers forced the abolition of the Corn Laws