Why are there no fossils in the Grand Canyon?

How many animals live in Yellowstone? How do you stimulate domestic tourism? Did com-cast buy sea world? When did the guarding of the tomb of the unknown soldier began? How many people swam across the pacific ocean? What materials were used to build Big Ben? Why did Valkyrie and friends meet with Thames Chabon? What ocean is closest to Alaska? What process of a desert such as the Gobi to continue growing? How many cm of rain does a desert get per year? Why luneta park considered as historical place in the Philippines? What is the area of Rock Cut State Park? Who was the first person to see lake superior? How did the yosemite valley form? What river was the French settlement of Quebec located? What Canadian cities and or trade routes would be affected if great lakes access were denied? Where is the Grovetown Museum in Grovetown Georgia located? How does volcanic dust become sediment in the deep ocean basin? How far is UK from Mediterranean sea? Why does the Nile begin where it does?