industry - choose a jigsaw puzzle to solve

Industry is the production of goods or related services within an economy. The major source of revenue of a group or company is the indicator of its relevant industry. When a large group has multiple sources of revenue generation, it is considered to be working in different industries. Manufacturing industry became a key sector of production and labour in European and North American countries during the Industrial Revolution , upsetting previous mercantile and feudal economies. This came through many successive rapid advances in technology , such as the production of steel and coal . Following the Industrial Revolution , possibly a third of the world 's economic output are derived that is from manufacturing industries. Many developed countries and many developing/semi-developed countries ( China , India etc.) depend significantly on manufacturing industry. Industries, the countries they reside in, and the economies of those countries are interlinked in a complex web of interdependence.