Relier Pairs Imaginary linesVersion en ligne Imaginary lines par Luz Álvarez Herrero 1 It divides the Earth into two hemispheres 2 It begins on 21 March in the Northern Hemisphere 3 The Earth takes 24 hours to make this movement. It causes day and night 4 It is the most important meridian. It is meridian 0º 5 It begins on 21 June in the Southern Hemisphere 6 The Earth takes 365 days and 6 hours to make this movement. It causes the seasons 7 When we are measuring in degrees North or South we are measuring... 8 When we are measuring in degrees West or East we are measuring... 9 It begins on 21 June in the Northern Hemisphere 10 They go from the North Pole to the South Pole SPRING LATITUDE LONGITUDE SUMMER Greenwich Meridian EQUATOR Meridians ROTATION WINTER REVOLUTION