 
			 
			MCQOPTIONS
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				| 1. | The layers of atmosphere are heated through [MP PET 1986] | 
| A. | Convection | 
| B. | Conduction | 
| C. | \[-K{{a}^{2}}\] | 
| D. | (b) and (c) both | 
| Answer» B. Conduction | |