How many miles of roads in Gibraltar?

How did the salt trade affect regions south of the Sahara? Why can certain fossils such as corals be used to indicate former water temperature? What are two types of wetland? How does the decaying of a tree contribute to the health of the forest? Are there insects on Haleakala National Park? Why was colonial mentality a great barrier? What products can be found from Pacific Coast Avionics? What is Ocean-Ocean? Where in the pacific ocean were nuclear weapons tested after world war 2? How far is dunnellon from the gulf? Does the grand canyon reach to the mantle? Into what body of water does the Amur river empty? What mountiansystem is mout Everest located in? Does Alan Alda Have a star on the Hollywood walk of fame? Where is the closest ocean front beach to Peoria il? Why we cannot find water in the desert? What could stop eroding of the sand dunes? What ocean borders Asia? What is the main use of fresh water in the world? How is the Nile important to farming and in producing energy in Egypt?