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                              Q:
                           
                           
                                                      | A) supplies the oxygen and water for life | B) screens out much of the Sun's ultraviolet radiation | 
| C) insulates the surface against temperature extremes | D) All of the above | 
                              Answer:   D) All of the above
                              
                                                            
                              
Explanation:
                               
                           
                           Explanation:
Here all the options given are important functions of Earth's atmosphere.
 
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