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Test question 13.1

Test question 13.1. Landscape of Pluto was mapped by xDirect imaging from the ground with laser guide xVoyager space craft vLight variations during eclipse transit by Charon xRadar. Test question 13.2. Pluto was recently classified as a dwarf planet because

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Test question 13.1

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  1. Test question 13.1 • Landscape of Pluto was mapped by • xDirectimaging from the ground with laser guide • xVoyagerspace craft • vLightvariations during eclipse transit by Charon • xRadar

  2. Test question 13.2 • Pluto was recently classified as a dwarf planet because • xItis much further out than normal planets • xItsmass and radius are much smaller than normal planets • xTheyare several Kuiper Belt objects with similar properties • vAllof the above

  3. Test question 13.3 • Kuiper Belt objects are: • xCapturedmaterial from the interstellar medium • xEscapedmoons around planets • xRemains of gas giant planets which lost most of their gas • vRelicsof primitive planetesimals

  4. Test question 13.4 • Kuiper Belt objects are found with: • xMeasureof their Doppler effects • vSearchfor objects which move slightly within a given night • xTakingspectra of faint objects at night • xInterplanetaryspace probes

  5. Test question 13.5 • Comets are thought to have formed much further out from the Sun than planets because • xTheyare dirty snow balls • xTheyhave very long periods • xTheybreak up easily when venture into the inner solar system • vAllof the above

  6. Test question 13.6 • A recently discovered Comet Tosis has a period 8 times that of Comet Halley. The semi major axis of Tosis is • x1/8 that of Comet Halley • xSameas Comet Halley • v4 times that of Comet Halley • x8 times that of Comet Halley

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