In general, no, the revolution in agriculture was no necessary to the Industrial Revolution since the Industrial Revolution relied on things like machines and steel.
Because the men who were at the front came back to their home and made love to their wife. There was also a great feeling of prosperity in the victorious countries.
Answer:
How would life have been different in the 1800s if the steam locomotive had not been invented? Products would have been more expensive. Locomotives would have used wood or coal. Most goods would have been transported by wagon.