I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "With the advent of the Industrial Revolution, Britain surged ahead of its European rivals. Demand for Indian commodities was boosted by the need to sustain the troops and the economy during the war, and by the increased availability of raw materials and efficient methods of production. As home to the revolution, Britain experienced higher standards of living. Its spiralling cycle of prosperity, demand and production had a profound influence on overseas trade. The company became the single largest player in the British global market. William Henry Pyne notes in his book The Microcosm of London (1808) that:"? 

What was the biggest contributor to Britain's success in the 1800s?