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L:2  The motion of the sun and the Earth




                There are two types of motion of the Earth.






                   A) Around  itself                                      B) Around the sun

                          (its axis)







                            A) The rotation of the Earth around itself.







          The Earth rotates around its self ( its axis ) every 24 hours ( one
            day )



          The rotation of the Earth around itself (its axis) causes


          The sequence of day and night.






                Note
                The hours of the day are not equal to the hours of  the night.


                Because, the earth axis is inclined.














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