What Stream from heaven afar?

What are the numbers of the 3 interstate highways that run from coast-to-coast? Why are the great lakes salty? List 6 Great Lake in the US? Where are the main rivers in the UK located? Why do adult orangutans need a large area of forest to survive? What were the four sectors of the colosseum? What river passes through the Eternal City? Why grape fruite so big? When is the best time to cross the gulf of Mexico? How do you described the Grand Canyon? Are beaches urban suburban or rural? What is the concentric part of a leg extension? If you have a leaky heart valve should you avoid going on roller coasters? What is the last stone in an arch bridge called? Do sharks live in Lake Michigan? What was the worst beach on d-day? When was Black Canyon of the Gunnison National Park created? Why was the Hudson river important to the furs trade? Was the Hoover dam named after J Edgar Hoover? How many hours will it take to drive from San Fransisco California to Yosemite National Park?