What was the importance of the steam engine to Britains Industrial Revolution?

The steam engine was very impoertant in the developement of britains industrial revolution.the steam engine helped the cotton industry.it was used to power large mechanical looms. britains coal production expanded because the steam engine used coal for fuel.iron production was much better because of the new processes in using coal in the iron industry. the well developed iron was used to make new machines such as the trains and the railroad.the making of trains and the railroad lowered the price of transportation of people and goods.this made the merchants have a bigger profitand helped the economy.