MCQOPTIONS
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				| 1. | 
                                    Microwave signals transmitted towards the sky are | 
                            
| A. | strongly absorbed by the ionosphere | 
| B. | strongly reflected by the ionosphere | 
| C. | transmitted through the ionosphere | 
| D. | unable to reach the ionosphere because of strong absorption in the lower atmosphere | 
| Answer» D. unable to reach the ionosphere because of strong absorption in the lower atmosphere | |