Answers

2015-12-02T22:13:12+08:00
Because the sun's heat/rays is not directly hit to the places far from equator
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2015-12-02T22:46:34+08:00
 
earth tilts on its axis so its equatorial portion is facing directly the sun while those at the polar regions are hidden thus lesser rays that brings light and heat  will reach the polar regions making it colder than places at the equatorial region.
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