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                              Q:
                           
                           
                                                      | A) small angle | B) right angle | 
| C) large angle | D) None of the above | 
                              Answer:   A) small angle
                              
                                                            
                              
Explanation:
                               
                           
                           Explanation:
The earth receives energy from the Sun in the form of radiation . The Earth reflects about 30% of the incoming solar radiation. In polar areas, solar radiation strikes earth at a low angle. The more acute the angle at which the sunlight strikes, the more atmosphere that sunlight must pass through.
 
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