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    				| 1. | 
                                    The earth takes_____________ hours to complete one rotation around its axis | 
                            
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Answer»  The circle that divides the day from night on the globe is called the circle of ILLUMINATION. This circle does not COINCIDE with the axis as you see in the FIGURE 3.2. The earth takes about 24 hours to complete ONE ROTATION around its axis  | 
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