Great Britain is one of the world's leading industrial
nations. It lacks most of the raw materials needed for
industry, however, and must also import about 40% of
its food supplies. Thus, its prosperity is heavily dependent
on the export of manufactured goods in exchange for
raw materials and foodstuffs, and it has long been an
extremely active trading nation. Manufacturing and service
industries employ more than one third of the total work
force.
Major industries include mechanical and electrical
engineering, food processing, iron and steel, paper
and printing, motor vehicles, chemicals, textiles, and
aircraft. Production of oil from North Sea wells began
in 1975, and by 1979 the country was self-sufficient
in petroleum. Coal is also mined in large quantities.
Almost 30% of the land is arable, and almost half is
suitable for meadows and pastures. Chief commodities
are dairy products and beef cattle and other livestock,
including many sheep, which are raised for meat and
wool. The coal, gas, electricity, railroad, shipbuilding,
and aerospace industries, which were mainly publicly
owned until the late 1970s, have undergone increasing
privatisation.