How big can a forest fire be?

How long does it take to travel across the Sahara? What is the difference between estuaries and coral reefs? What is a giant spinning ocean born storm? Which president started the national forrest service? Was the grand teton first a national monument? What is the best town to visit on Lake Constance? Which lake is 48 north and 90 west? What year did amelia earhart fly a plane? Why can ocean waves wash away rocks on the beach? Do the vegetation types change over distance in sand dunes? Who built carew castle? Where does the monongahela feed? How do scientists use satellites to make detailed maps of the ocean floor? What are rivers that contain water throughout the year called? How many parts are there on the Eiffel Tower? What is a place called where 2 routes meet? What four African countries border the red sea? What is the name of the Eastern Ocean? Why did the liberty bell crack 2 times? Why did the liberty bell need to be melted and rebuilt several times?