prior to 1750 and the onset of industrial​ revolution, very little economic growth occurred in the world. what marks the beginning of the industrial​ revolution? part 2 a. when eli whitney invented the cotton​ gin, textile production increased​ world-wide. b. adding mechanical power to the production process increased the quantity of goods each worker could produce. c. the​ newly-discovered spice trade routes opened up new markets for goods and increased demand for them. d. the smelting of iron ore increased the use of​ durable, metal tools which made farming more productive.