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Reading an Elevation Map
Reading an Elevation Map

... above sea level the land in a region is. Land that is at sea level is at the same height, or level, as the sea. Land rises from that point. (In some inland areas, however, the land is actually below sea level.) The highest point above sea level on Earth is the peak of Mount Everest. It stands 29,028 ...
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... A GIS combines information about a place from several sources, databases, satellites, maps and stores it to create new maps and help geographers solve problems 18. Which countries are fighting over Kashmir? ...
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... grow crops and vegetation is limited. Deserts also isolate and protect civilizations because it is difficult to travel and trade. ...
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The sea floor spreads apart at divergent boundaries.
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History of navigation



The history of navigation is the history of seamanship, the art of directing vessels upon the open sea through the establishment of its position and course by means of traditional practice, geometry, astronomy, or special instruments. A few peoples have excelled as seafarers, prominent among them the Austronesians, their descendants the Malays, Micronesians, and Polynesians, the Harappans, the Phoenicians, the ancient Greeks, the Romans, the Arabs, the ancient Tamils, the Norse, the ancient Bengalis, the Chinese, the Venetians, the Genoese, the Hanseatic Germans, the Portuguese, the Spanish, the English, the French, the Dutch and the Danes.
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