study1 - Study Questions 1 Physical Geography Thorngren 1....

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Study Questions 1 Physical Geography Thorngren 1. Define: geography, atmosphere, hydrosphere, lithosphere, biosphere. 2. What are the main elements of physical geography (as opposed to the elements of cultural geography)? 3. Describe the Earth’s orbit around the sun (distance, time, shape). Define: rotation, revolution, plane of the ecliptic, perihelion (when does it occur?), aphelion, angle of inclination, angle of incidence, circle of illumination. 4. What is latitude? What does it measure, and how is it determined? What are the characteristics of lines of latitude, and what are the names and significance of some important lines of latitude (the Equator, for example)? Also, answer the same questions for longitude. Be sure you can read latitude and longitude on a map. 5. Time zones: how many degrees on the earth’s surface represent one hour difference in time? If you go west, is the time getting earlier or later? 6. What causes seasons? Sketch the earth’s position and tilt relative to the sun at each of the four seasons: show north and south poles, the circle of illumination, and important lines of latitude. Why is angle of incidence important? How does daylength vary over the globe at different seasons? 7. What is an equinox? On what dates do equinoxes occur? How and where do the sun’s rays strike the Earth during an
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This note was uploaded on 04/21/2008 for the course PHYS 195 taught by Professor Anderson during the Winter '07 term at San Diego State.

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