The layer of the atmosphere in which Radio Waves are reflected back is called ;

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Q: (SSC/0)
The layer of the atmosphere in which Radio Waves are reflected back is called ;
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question_subject: 

Geography

question_exam: 

SSC

stats: 

0,59,5,59,1,4,0

keywords: 

{'radio waves': [1, 2, 3, 2], 'troposphere': [6, 1, 1, 1], 'stratosphere': [1, 0, 1, 0], 'exosphere': [3, 0, 3, 4], 'atmosphere': [1, 1, 4, 7], 'layer': [4, 1, 3, 2]}