Seasons

• Seasons of the Earth created from the tilt on its axis and the revolution around the sun every 365.342 days

• Winter Solstice

  • Dec. 21

  • Shortest daylight hours

  • 24 hours night in Arctic

  • 24 hours day in Antarctic

• Summer Solstice

  • June 21

  • Longest daylight hours

  • 24 hours day in Arctic

  • 24 hours night in Antarctic

• Autumnal Equinox

  • Sept 21

• Vernal Equinox

  • March 21

Convection

• Warm moist air rises, cools in upper atmosphere, drops moisture and diverges. Cool, dry air falls on a different latitude.

• Many deserts are found around 30° N and S latitudes from this process.