MCQOPTIONS
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				| 1. | 
                                    The crust and the upper-most part of the mantle up to a depth of 200 km from the surface of the earth is called: | 
                            
| A. | Pyrosphere | 
| B. | Osophere | 
| C. | Cyrosphere | 
| D. | Lithosphere | 
| Answer» D. Lithosphere | |