What doesDBB mean in tourism?

Who published the book bird by bird? Where is the worlds oldest working dam? Can you sail down the Colorado river in a day? WHERE did Billy Stewart die? Which museum is Charles Lindbergh's plane? When does a stream discharge decrease? Why did niagara falls stop flowing in 1969? What are the names of the four oceans in North America? Why is the direction of air flow important when blowdrying the hair? What forms when water from lakes oceans rivers? What can you catch mouth to mouth? During the campaign of 1828 what did John Adams say about Andrew Jacksons wife? What is the average size pacific sailfish being caught? What other river flows north like the st johns? What is the temperature of the river Thames? How do the amerindians look after the rainforest? Name the area of sea between St. David's Head and Eire? Is the Rock of Gibraltar 1400 feet high limestone rock? How many islands on the Great Barrier Reef? Where is the Lower Rio Grande Valley Nature Center in Weslaco Texas located?