OCS 1005 Chapter : AnswersToConceptCheckChapter2
15 Mar 2019
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Key concept review (answers to in-text concept checks ) Chapter 2: any coastal culture skilled at raft building or small boat navigation would have economic and nutritional advantages over less skilled competitors. From the earliest period of human history, understanding and appreciating the ocean and its life-forms benefited coastal civilizations: the alexandrian library and the adjacent museum could be considered the first university in the world. Earth"s size was calculated from observations of the geometry of the sun"s shadows at different latitudes, and the distances between the observations. Earth"s shape was deduced from observations of earth"s shadow on the moon during lunar eclipses: overpopulation and depletion of resources became a problem on the home islands. Politics, intertribal tensions, and religious strife shook society. Groups of people scattered in all directions from some of the cradle islands during a period of explosive dispersion. Great dual-hulled sailing ships, some capable of transporting up to 100 people, were designed and built.
