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: A [[day]] on [[Earth]] lasts 24 [[hour]]s.
: A daytime and nighttime are caused by the [[Earth]] spinning around on its [[axis]].
{| class="wikitable"
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|[[File:RotatingEarth.gif|center]]
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| style="height:20px; width:200px; text-align:center;" |As the [[Earth]] spins the side facing [[The Sun]] is in daylight and the side facing away from [[The Sun]] is in darkness.
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