Final answer:
Chicago Food Planet Food Tours and Food Tour Pros generate revenue through food tasting tours and business courses for entrepreneurs.
Step-by-step explanation:
Chicago Food Planet Food Tours and Food Tour Pros generate revenue through food tasting tours and business courses for entrepreneurs. They provide guided food tours where participants can sample local cuisine while learning about the city's history and culture. Additionally, they offer business courses specifically designed for entrepreneurs who want to start or improve their own food tour businesses.