Why there was such a new demand for grains in Britain in the 18th and 19th centuries?

Why there was such a new demand for grains in Britain in the 18th and 19th centuries?

There was such a new demand for grains in Britain in the 18th and 19th centuries because:

(i) By mid 18th century the English population expanded rapidly. Between 1750 to 1900 it multiplied over four times (7 million to 30 million). This meant an increased demand for food grains to feed the population.

(ii) Britain at this time was industrialising. More and more people began to live and work in urban areas. Men from rural areas migrated to towns in search of jobs.

(iii) As the urban population grew demand for food grains expanded.

(iv) By the end of the 18th century France was at war with England. This disrupted trade and import of food grains from Europe.