Jeopardy for the classroom

Turkey

1. What city, formerly known as Constantinople, is Turkey's largest industrial and financial center?
2. What is Turkey's predominant religious faith?
3. What large empire did the Turks control up until the end of World War I?
4. What famous British soldier helped the Arabs overthrow the Turks during World War I? (hint: there is a famous Hollywood movie about him starring Peter O'Toole)
5. What is Turkey's largest minority ethnic group?