Bibliography

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__Heather's Bibliography __  Russell, Randy. "The Earth's Rotation". Windows to the Universe. May 26, 2009 . "Seasons." 22 April 2009. HowStuffWorks.com.  29 May 2009. "What causes the seasons?." 01 April 2000. HowStuffWorks.com.  29 May 2009.  Williams, Paige. "Scientific Reasons for the Earth's Seasons." //MSNBC//. N.p., 19 Mar. 2009. Web. 29 May 2009. []

Pillai, Maya. "What causes Day and Night?" __Buzzle__. 12 Sept. 2008. 30 May 2009 . . <span style="font-family: 'Comic Sans MS'; color: navy; font-size: 12pt; mso-bidi-font-size: 15.5pt; mso-bidi-font-family: Arial;">