Paper I · 4 Geography of India & AP · 4.1.1 Universe, solar system and the Earth

4.1.1.6 Earth's rotation and revolution: day and night, seasons, solstices and equinoxes

The Earth spins on a tilted axis once a day, giving day and night, and goes round the Sun once a year; because the tilted axis keeps pointing the same way, the Sun's overhead position shifts between the tropics, giving seasons, solstices and equinoxes.

  • APPSC Paper I · Paper I
  • Standard level
  • 8 min read
  • Full course

Key terms

  • rotation
  • revolution
  • axis
  • 23.5 degrees
  • 66.5 degrees
  • circle of illumination
  • leap year
  • perihelion
  • aphelion
  • summer solstice
  • winter solstice
  • equinox
  • midnight sun
  • Uttarayan
  • Coriolis

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

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