What is a rain system in France?

Where is the start of the Mississippi River? What is the name of the leaning building? What direction is lake Victoria from mountain Kilimanjaro in Africa? Where is the Kerr Museum in Oakmont Pennsylvania located? How tall is the skyscreamer at marineland? How many people of a height of 5 foot 4 would it take to get the full height of the CN tower? How did the Aztecs extend their borders to reach from the Atlantic to the pacific oceans? Low flooded area at the wide mouth of a river? Do tigers live in a desert? What 7 animals surround the fountain of four rivers? What caused an island arc to develop east of the North American continent early in the tectonic history of the Appalachian Mountains? Where the pharaohs were buried? How much does the flatiron building weigh? Why is the Parthenon still remembered? What happened to the Sphinx of Giza's beard? How big are sink holes in the sahara? Where is the Bosque Redondo Memorial located? How are mangroves forests formed? Is the Antarctica ocean the southern ocean? Describe the problems the Nile Perch causes in Lake Victoria?