Study

Unit 1. Planet Earth

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  • on the 21 June summer begins in the:
    Northern Hemisphere
  • the movement of the Earth on its own axis
    rotation
  • an imaginary line that goes through Earth
    axis
  • The movement of the Earth around the Sun.
    revolution
  • it takes this long to make a comlete rotation
    24 hours
  • parallel 0º
    Equator
  • the Earth takes 365 days to pass around the Sun
    orbit
  • semicircular vertical lines from the North Pole to the South Pole.
    Meridians
  • Meridian 0º
    Greenwich
  • On 21 March atumn begins in the
    Southern Hemisphere
  • are circular horizontal lines around the Earth
    Parallels
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