Relier Pairs Planet Earth IntroVersion en ligne Introduccion de características del planeta. Movimientos del planeta y situación de las estaciones anuales. par Estibaliz Martinez 1 The seasons are the result of... 2 It is winter in the Northern hemisphere when... 3 The revolution of the Earth is... 4 It is spring or autumn when... 5 The rotation of the Earth is ... 6 It is summer in the Northern hemisphere when... the Sun´s rays fall on the Northern hemisphere. its elliptical orbit around the Sun. the Sun´s rays fall on the Equator. the Sun´s rays fall on the Southern hemisphere. its movement around its own axis. the tilt of the Earth and its orbit round the Sun.
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